diff --git a/sickchill/gui/slick/js/ajaxNotifications.js b/sickchill/gui/slick/js/ajaxNotifications.js
index c24213c748..cf2f69e27a 100644
--- a/sickchill/gui/slick/js/ajaxNotifications.js
+++ b/sickchill/gui/slick/js/ajaxNotifications.js
@@ -26,7 +26,9 @@ function displayPNotify(type, title, message, id) {
         hide: true,
         history: true,
         shadow: true,
-        stack: {dir1: 'up', dir2: 'left', firstpos1: 25, firstpos2: 25},
+        stack: {
+            dir1: 'up', dir2: 'left', firstpos1: 25, firstpos2: 25,
+        },
         styling: 'fontawesome',
         width: '340px',
         destroy: true,
diff --git a/sickchill/gui/slick/js/browser.js b/sickchill/gui/slick/js/browser.js
index ab2f0d82a0..09db03c38c 100644
--- a/sickchill/gui/slick/js/browser.js
+++ b/sickchill/gui/slick/js/browser.js
@@ -34,10 +34,10 @@
         }, data => {
             fileBrowserDialog.empty();
             const firstValue = data[0];
-            let i = 0;
             let list = null;
             let link = null;
-            data = $.grep(data, () => i++ !== 0);
+
+            const innerData = $.grep(data, (value, index) => index !== 0);
 
             const inputContainer = $('<div class="fileBrowserFieldContainer"></div>');
             $('<input type="text" class="form-control input-sm">').val(firstValue.currentPath).on('keypress', event_ => {
@@ -52,7 +52,7 @@
 
             const listContainer = $('<div class="ui-dialog-scrollable-child">');
             list = $('<ul>').appendTo(listContainer.appendTo(fileBrowserDialog));
-            $.each(data, (i, entry) => {
+            $.each(innerData, (i, entry) => {
                 if (entry.isFile && fileTypes && (!entry.isAllowed || fileTypes.includes('images') && !entry.isImage)) { // eslint-disable-line no-mixed-operators
                     return true;
                 }
@@ -70,13 +70,11 @@
                 } else if (entry.isFile) {
                     link.prepend('<span class="ui-icon ui-icon-document"></span>');
                 } else {
-                    link.prepend('<span class="ui-icon ui-icon-folder-collapsed"></span>')
-                        .on('mouseenter', function () {
-                            $('span', this).addClass('ui-icon-folder-open');
-                        })
-                        .on('mouseleave', function () {
-                            $('span', this).removeClass('ui-icon-folder-open');
-                        });
+                    link.prepend('<span class="ui-icon ui-icon-folder-collapsed"></span>').on('mouseenter', function () {
+                        $('span', this).addClass('ui-icon-folder-open');
+                    }).on('mouseleave', function () {
+                        $('span', this).removeClass('ui-icon-folder-open');
+                    });
                 }
 
                 link.appendTo(list);
@@ -91,12 +89,12 @@
     }
 
     $.fn.nFileBrowser = function (callback, options) {
-        options = $.extend({}, $.Browser.defaults, options);
+        const newOptions = $.extend({}, $.Browser.defaults, options);
 
         // Make a fileBrowserDialog object if one doesn't exist already
         if (fileBrowserDialog) {
             // The title may change, even if fileBrowserDialog already exists
-            fileBrowserDialog.dialog('option', 'title', options.title);
+            fileBrowserDialog.dialog('option', 'title', newOptions.title);
         } else {
             // Set up the jquery dialog
             fileBrowserDialog = $('<div class="fileBrowserDialog" style="display:none"></div>').appendTo('body').dialog({
@@ -104,7 +102,7 @@
                 classes: {
                     'ui-dialog': 'ui-dialog-scrollable-by-child',
                 },
-                title: options.title,
+                title: newOptions.title,
                 position: {my: 'center top', at: 'center top+60', of: window},
                 minWidth: Math.min($(document).width() - 80, 650),
                 height: Math.min($(document).height() - 80, $(window).height() - 80),
@@ -120,7 +118,7 @@
             class: 'btn',
             click() {
                 // Store the browsed path to the associated text field
-                callback(options.includeFiles ? currentBrowserPath : $(this).find('.fileBrowserField').val(), options);
+                callback(newOptions.includeFiles ? currentBrowserPath : $(this).find('.fileBrowserField').val(), newOptions);
                 $(this).dialog('close');
             },
         }, {
@@ -132,38 +130,38 @@
         }]);
 
         // Set up the browser and launch the dialog
-        let initialDir = '';
-        if (options.initialDir) {
-            initialDir = options.initialDir;
+        let initialDirectory = '';
+        if (newOptions.initialDirectory) {
+            initialDirectory = newOptions.initialDirectory;
         }
 
-        browse(initialDir, options.url, options.includeFiles, options.fileTypes);
+        browse(initialDirectory, newOptions.url, newOptions.includeFiles, newOptions.fileTypes);
         fileBrowserDialog.dialog('open');
 
         return false;
     };
 
     $.fn.fileBrowser = function (options) {
-        options = $.extend({}, $.Browser.defaults, options);
+        const newOptions = $.extend({}, $.Browser.defaults, options);
         // Text field used for the result
-        options.field = $(this);
+        newOptions.field = $(this);
 
-        if (options.field.autocomplete && options.autocompleteURL) {
+        if (newOptions.field.autocomplete && newOptions.autocompleteURL) {
             let query = '';
-            options.field.autocomplete({
+            newOptions.field.autocomplete({
                 position: {my: 'top', at: 'bottom', collision: 'flipfit'},
                 source(request, response) {
                     // Keep track of user submitted search term
-                    query = $.ui.autocomplete.escapeRegex(request.term, options.includeFiles);
+                    query = $.ui.autocomplete.escapeRegex(request.term, newOptions.includeFiles);
                     $.ajax({
-                        url: options.autocompleteURL,
+                        url: newOptions.autocompleteURL,
                         data: request,
                         dataType: 'json',
                         success(data) {
                             // Implement a startsWith filter for the results
                             const matcher = new RegExp('^' + query, 'i');
-                            const a = $.grep(data, item => matcher.test(item));
-                            response(a);
+                            const match = $.grep(data, item => matcher.test(item));
+                            response(match);
                         },
                     });
                 },
@@ -173,53 +171,53 @@
             }).data('ui-autocomplete')._renderItem = function (ul, item) {
                 // Highlight the matched search term from the item -- note that this is global and will match anywhere
                 let resultItem = item.label;
-                const x = new RegExp('(?![^&;]+;)(?!<[^<>]*)(' + query + ')(?![^<>]*>)(?![^&;]+;)', 'gi');
-                resultItem = resultItem.replace(x, fullMatch => '<b>' + fullMatch + '</b>');
-                return $('<li></li>')
-                    .data('ui-autocomplete-item', item)
-                    .append('<a class="nowrap">' + resultItem + '</a>')
-                    .appendTo(ul);
+                const matcher = new RegExp('(?![^&;]+;)(?!<[^<>]*)(' + query + ')(?![^<>]*>)(?![^&;]+;)', 'gi');
+                resultItem = resultItem.replace(matcher, fullMatch => '<b>' + fullMatch + '</b>');
+                return $('<li></li>').data('ui-autocomplete-item', item).append('<a class="nowrap">' + resultItem + '</a>').appendTo(ul);
             };
         }
 
         let path = false;
         let callback = false;
-        let ls = false;
-        // If the text field is empty and we're given a key then populate it with the last browsed value from localStorage
+        let hasLocalStorage = false;
+        // If the text field is empty, and we're given a key then populate it with the last browsed value from localStorage
         try {
-            ls = Boolean(localStorage.getItem);
+            hasLocalStorage = Boolean(localStorage.getItem);
         } catch {}
 
-        if (ls && options.key) {
-            path = localStorage['fileBrowser-' + options.key];
+        if (hasLocalStorage && newOptions.key) {
+            path = localStorage['fileBrowser-' + newOptions.key];
         }
 
-        if (options.key && options.field.val().length === 0 && path) {
-            options.field.val(path);
+        if (newOptions.key && newOptions.field.val().length === 0 && path) {
+            newOptions.field.val(path);
         }
 
-        callback = function (path, options) {
-            options.field.val(path);
+        callback = function (path, newOptions) {
+            newOptions.field.val(path);
 
             // Use a localStorage to remember for next time -- no ie6/7
-            if (ls && options.key) {
-                localStorage['fileBrowser-' + options.key] = path;
+            if (hasLocalStorage && newOptions.key) {
+                localStorage['fileBrowser-' + newOptions.key] = path;
             }
         };
 
-        options.field.addClass('fileBrowserField');
-        if (options.showBrowseButton) {
+        newOptions.field.addClass('fileBrowserField');
+        if (newOptions.showBrowseButton) {
             // Append the browse button and give it a click behaviour
-            options.field.after(
+            newOptions.field.after(
                 $('<input type="button" value="Browse&hellip;" class="btn btn-inline fileBrowser">').on('click', function () {
-                    const initialDir = options.field.val() || (options.key && path) || '';
-                    const optionsWithInitialDir = $.extend({}, options, {initialDir});
-                    $(this).nFileBrowser(callback, optionsWithInitialDir);
+                    let initialDirectory = newOptions.field.val();
+                    initialDirectory ||= (newOptions.key && path);
+                    initialDirectory ||= '';
+
+                    const optionsWithInitialDirectory = $.extend({}, newOptions, {initialDirectory});
+                    $(this).nFileBrowser(callback, optionsWithInitialDirectory);
                     return false;
                 }),
             );
         }
 
-        return options.field;
+        return newOptions.field;
     };
 })(jQuery);
diff --git a/sickchill/gui/slick/js/configProviders.js b/sickchill/gui/slick/js/configProviders.js
index be41731d86..dc3289601d 100644
--- a/sickchill/gui/slick/js/configProviders.js
+++ b/sickchill/gui/slick/js/configProviders.js
@@ -245,7 +245,7 @@ $(document).ready(function () {
     $.fn.makeNewznabProviderString = function () {
         const provStrings = [];
         for (const id in newznabProviders) {
-            if (Object.prototype.hasOwnProperty.call(newznabProviders, id)) {
+            if (Object.hasOwn(newznabProviders, id)) {
                 provStrings.push(newznabProviders[id][1].join('|'));
             }
         }
@@ -289,7 +289,7 @@ $(document).ready(function () {
     $.fn.makeTorrentRssProviderString = function () {
         const provStrings = [];
         for (const id in torrentRssProviders) {
-            if (Object.prototype.hasOwnProperty.call(torrentRssProviders, id)) {
+            if (Object.hasOwn(torrentRssProviders, id)) {
                 provStrings.push(torrentRssProviders[id].join('|'));
             }
         }
@@ -323,7 +323,7 @@ $(document).ready(function () {
         if (finalArray.length > 0) {
             $('<select>').prop('id', 'editAProvider').addClass('form-control input-sm').appendTo('#provider-list');
             for (const id in finalArray) {
-                if (Object.prototype.hasOwnProperty.call(finalArray, id)) {
+                if (Object.hasOwn(finalArray, id)) {
                     const provider = finalArray[id];
                     $('#editAProvider').append($('<option>').prop('value', provider).text($.trim($('#' + provider).text()).replace(/\s\*$/, '').replace(/\s\*\*$/, '')));
                 }
@@ -461,7 +461,9 @@ $(document).ready(function () {
         const url = $('#torrentrss_url').val();
         const cookies = $('#torrentrss_cookies').val();
         const titleTAG = $('#torrentrss_titleTAG').val();
-        const parameters = {name, url, cookies, titleTAG};
+        const parameters = {
+            name, url, cookies, titleTAG,
+        };
 
         // Send to the form with ajax, get a return value
         $.getJSON(scRoot + '/config/providers/canAddTorrentRssProvider', parameters, function (data) {
diff --git a/sickchill/gui/slick/js/core.js b/sickchill/gui/slick/js/core.js
index 7ee067ee3e..84aea51572 100644
--- a/sickchill/gui/slick/js/core.js
+++ b/sickchill/gui/slick/js/core.js
@@ -1,5 +1,5 @@
-function getMeta(pyVar) {
-    return $('meta[data-var="' + pyVar + '"]').data('content');
+function getMeta(pythonVariable) {
+    return $('meta[data-var="' + pythonVariable + '"]').data('content');
 }
 
 const scRoot = getMeta('scRoot');
@@ -29,10 +29,10 @@ function configSuccess(reload = true) {
     $('#prowl_show').trigger('notify');
 }
 
-function metaToBool(pyVar) {
-    let meta = $('meta[data-var="' + pyVar + '"]').data('content');
+function metaToBool(pythonVariable) {
+    let meta = $('meta[data-var="' + pythonVariable + '"]').data('content');
     if (meta === undefined) {
-        console.log(pyVar + ' is empty, did you forget to add this to "main.mako"?');
+        console.log(pythonVariable + ' is empty, did you forget to add this to "main.mako"?');
         return meta;
     }
 
@@ -42,9 +42,9 @@ function metaToBool(pyVar) {
     return !(meta === 'false' || meta === 'none' || meta === '0');
 }
 
-function isMeta(pyVar, result) {
+function isMeta(pythonVariable, result) {
     const reg = new RegExp(result.length > 1 ? result.join('|') : result);
-    return (reg).test($('meta[data-var="' + pyVar + '"]').data('content'));
+    return (reg).test($('meta[data-var="' + pythonVariable + '"]').data('content'));
 }
 
 function notifyModal(message) {
@@ -58,7 +58,7 @@ function addSiteMessage(level = 'danger', tag = '', message = '') {
         if (messagesDiv !== undefined) {
             messagesDiv.empty();
             for (const key in siteMessages) {
-                if (Object.prototype.hasOwnProperty.call(siteMessages, key)) {
+                if (Object.hasOwn(siteMessages, key)) {
                     messagesDiv.append('<div class="alert alert-' + siteMessages[key].level + ' upgrade-notification hidden-print" id="site-message-' + key + '" role="alert">'
                         + '<span>' + siteMessages[key].message + '</span><span class="glyphicon glyphicon-check site-message-dismiss pull-right" data-id="' + key + '"/>'
                         + '</div>');
@@ -160,9 +160,7 @@ const SICKCHILL = {
                 activate(event, ui) {
                     let lastOpenedPanel = $(this).data('lastOpenedPanel');
 
-                    if (!lastOpenedPanel) {
-                        lastOpenedPanel = $(ui.oldPanel);
-                    }
+                    lastOpenedPanel ||= $(ui.oldPanel);
 
                     if (!$(this).data('topPositionTab')) {
                         $(this).data('topPositionTab', $(ui.newPanel).position().top);
@@ -318,12 +316,12 @@ const SICKCHILL = {
             });
 
             $('.datePresets').on('click', function () {
-                let def = $('#date_presets').val();
-                if (this.checked && def === '%x') {
-                    def = '%a, %b %d, %Y';
+                let defaultPreset = $('#date_presets').val();
+                if (this.checked && defaultPreset === '%x') {
+                    defaultPreset = '%a, %b %d, %Y';
                     $('#date_use_system_default').html('1');
                 } else if (!this.checked && $('#date_use_system_default').html() === '1') {
-                    def = '%x';
+                    defaultPreset = '%x';
                 }
 
                 $('#date_presets').attr('name', 'date_preset_old');
@@ -335,8 +333,8 @@ const SICKCHILL = {
                 $('#date_presets_old').attr('name', 'date_preset_na');
                 $('#date_presets_old').attr('id', 'date_presets_na');
 
-                if (def) {
-                    $('#date_presets').val(def);
+                if (defaultPreset) {
+                    $('#date_presets').val(defaultPreset);
                 }
             });
 
@@ -389,29 +387,31 @@ const SICKCHILL = {
         },
         index() {
             $('#log_dir').fileBrowser({title: _('Select log file folder location')});
-            $('#sickchill_background_path').fileBrowser({title: _('Select Background Image'), key: 'sickchill_background_path', includeFiles: 1, fileTypes: ['images']});
-            $('#custom_css_path').fileBrowser({title: _('Select CSS file'), key: 'custom_css_path', includeFiles: 1, fileTypes: ['css']});
+            $('#sickchill_background_path').fileBrowser({
+                title: _('Select Background Image'), key: 'sickchill_background_path', includeFiles: 1, fileTypes: ['images'],
+            });
+            $('#custom_css_path').fileBrowser({
+                title: _('Select CSS file'), key: 'custom_css_path', includeFiles: 1, fileTypes: ['css'],
+            });
         },
         backupRestore() {
             $('#Backup').on('click', () => {
                 $('#Backup').attr('disabled', true);
                 $('#Backup-result').html(loading);
-                const backupDir = $('#backupDir').val();
-                $.get(scRoot + '/config/backuprestore/backup', {backupDir})
-                    .done(data => {
-                        $('#Backup-result').html(data);
-                        $('#Backup').attr('disabled', false);
-                    });
+                const backupDirectory = $('#backupDir').val();
+                $.get(scRoot + '/config/backuprestore/backup', {backupDirectory}).done(data => {
+                    $('#Backup-result').html(data);
+                    $('#Backup').attr('disabled', false);
+                });
             });
             $('#Restore').on('click', () => {
                 $('#Restore').attr('disabled', true);
                 $('#Restore-result').html(loading);
                 const backupFile = $('#backupFile').val();
-                $.post(scRoot + '/config/backuprestore/restore', {backupFile})
-                    .done(data => {
-                        $('#Restore-result').html(data);
-                        $('#Restore').attr('disabled', false);
-                    });
+                $.post(scRoot + '/config/backuprestore/restore', {backupFile}).done(data => {
+                    $('#Restore-result').html(data);
+                    $('#Restore').attr('disabled', false);
+                });
             });
 
             $('#backupDir').fileBrowser({title: _('Select backup folder to save to'), key: 'backupPath'});
@@ -1235,7 +1235,7 @@ const SICKCHILL = {
                     // future: Why is this not just sent as json to begin with?
                     const notifyList = [];
                     for (const listKey in list) {
-                        if (Object.prototype.hasOwnProperty.call(list, listKey) && listKey.charAt(0) !== '_') {
+                        if (Object.hasOwn(list, listKey) && listKey.charAt(0) !== '_') {
                             notifyList.push(list[listKey]);
                         }
                     }
@@ -1253,7 +1253,7 @@ const SICKCHILL = {
                     });
                     let html = '<option value="-1">-- Select --</option>';
                     for (const sortedListKey in sortedList) {
-                        if (Object.prototype.hasOwnProperty.call(sortedList, sortedListKey) && sortedList[sortedListKey].id && sortedList[sortedListKey].name) {
+                        if (Object.hasOwn(sortedList, sortedListKey) && sortedList[sortedListKey].id && sortedList[sortedListKey].name) {
                             html += '<option value="' + sortedList[sortedListKey].id + '">' + $('<div>').text(sortedList[sortedListKey].name).html() + '</option>';
                         }
                     }
@@ -1728,8 +1728,8 @@ const SICKCHILL = {
             });
 
             $.fn.refreshMetadataConfig = function (first) {
-                let curMost = 0;
-                let curMostProvider = '';
+                let currentMost = 0;
+                let currentMostProvider = '';
 
                 $('.metadataDiv').each(function () { // eslint-disable-line complexity
                     const generatorName = $(this).attr('id');
@@ -1759,14 +1759,14 @@ const SICKCHILL = {
                         seasonAllBanner ? '1' : '0',
                     );
 
-                    let curNumber = 0;
+                    let currentNumber = 0;
                     for (const element of configArray) {
-                        curNumber += Number.parseInt(element, 10);
+                        currentNumber += Number.parseInt(element, 10);
                     }
 
-                    if (curNumber > curMost) {
-                        curMost = curNumber;
-                        curMostProvider = generatorName;
+                    if (currentNumber > currentMost) {
+                        currentMost = currentNumber;
+                        currentMostProvider = generatorName;
                     }
 
                     $('#' + generatorName + '_eg_show_metadata').attr('class', showMetadata ? 'enabled' : 'disabled');
@@ -1782,8 +1782,8 @@ const SICKCHILL = {
                     $('#' + generatorName + '_data').val(configArray.join('|'));
                 });
 
-                if (curMostProvider !== '' && first) {
-                    $('#metadataType option[value=' + curMostProvider + ']').attr('selected', 'selected');
+                if (currentMostProvider !== '' && first) {
+                    $('#metadataType option[value=' + currentMostProvider + ']').attr('selected', 'selected');
                     $(this).showHideMetadata();
                 }
             };
@@ -2734,7 +2734,9 @@ const SICKCHILL = {
                         subtitlesTd.empty();
                         $.each(subtitles, (index, language) => {
                             if (language !== '') {
-                                subtitlesTd.append($('<img/>', {src: scRoot + '/images/subtitles/flags/' + language + '.png', alt: language, width: 16, height: 11}));
+                                subtitlesTd.append($('<img/>', {
+                                    src: scRoot + '/images/subtitles/flags/' + language + '.png', alt: language, width: 16, height: 11,
+                                }));
                             }
                         });
                         icon.prop('class', 'displayshow-icon-sub');
@@ -2797,8 +2799,8 @@ const SICKCHILL = {
                 $(this).val('jump');
             });
 
-            $('#seasonJumpLinks a').on('click', ev => {
-                const season = $(ev.target).data('season');
+            $('#seasonJumpLinks a').on('click', event_ => {
+                const season = $(event_.target).data('season');
                 $('html,body').animate({scrollTop: $('#' + season).offset().top - 50}, 'slow');
                 $('#collapseSeason-' + season).collapse('show');
                 location.hash = season;
@@ -3280,7 +3282,7 @@ const SICKCHILL = {
                     row += '<td style="width: 8%;">';
                     subtitles = subtitles.split(',');
                     for (const i in subtitles) {
-                        if (Object.prototype.hasOwnProperty.call(subtitles, i)) {
+                        if (Object.hasOwn(subtitles, i)) {
                             row += '<img src="' + scRoot + '/images/subtitles/flags/' + subtitles[i] + '.png" width="16" height="11" alt="' + subtitles[i] + '" />&nbsp;';
                         }
                     }
@@ -3477,31 +3479,31 @@ const SICKCHILL = {
             }
         },
         massEdit() {
-            function findDirIndex(which) {
-                const dirParts = which.split('_');
-                return dirParts.at(-1);
+            function findDirectoryIndex(which) {
+                const directoryParts = which.split('_');
+                return directoryParts.at(-1);
             }
 
-            function editRootDir(path, options) {
+            function editRootDirectory(path, options) {
                 $('#new_root_dir_' + options.whichId).val(path);
                 $('#new_root_dir_' + options.whichId).change();
             }
 
             $('.new_root_dir').on('change', function () {
-                const curIndex = findDirIndex($(this).attr('id'));
-                $('#display_new_root_dir_' + curIndex).html('<b>' + $(this).val() + '</b>');
+                const currentIndex = findDirectoryIndex($(this).attr('id'));
+                $('#display_new_root_dir_' + currentIndex).html('<b>' + $(this).val() + '</b>');
             });
 
             $('.edit_root_dir').on('click', function () {
-                const curIndex = findDirIndex($(this).attr('id'));
-                const initialDir = $('#new_root_dir_' + curIndex).val();
-                $(this).nFileBrowser(editRootDir, {initialDir, whichId: curIndex});
+                const currentIndex = findDirectoryIndex($(this).attr('id'));
+                const initialDirectory = $('#new_root_dir_' + currentIndex).val();
+                $(this).nFileBrowser(editRootDirectory, {initialDirectory, whichId: currentIndex});
             });
 
             $('.delete_root_dir').on('click', function () {
-                const curIndex = findDirIndex($(this).attr('id'));
-                $('#new_root_dir_' + curIndex).val(null);
-                $('#display_new_root_dir_' + curIndex).html('<b>' + _('DELETED') + '</b>');
+                const currentIndex = findDirectoryIndex($(this).attr('id'));
+                $('#new_root_dir_' + currentIndex).val(null);
+                $('#display_new_root_dir_' + currentIndex).html('<b>' + _('DELETED') + '</b>');
             });
 
             SICKCHILL.common.QualityChooser.init();
@@ -3513,30 +3515,30 @@ const SICKCHILL = {
             });
 
             $('.get_more_eps').on('click', function () {
-                const curIndexerId = $(this).attr('id');
-                const checked = $('#allCheck-' + curIndexerId).is(':checked');
-                const lastRow = $('tr#' + curIndexerId);
+                const currentIndexerId = $(this).attr('id');
+                const checked = $('#allCheck-' + currentIndexerId).is(':checked');
+                const lastRow = $('tr#' + currentIndexerId);
                 const clicked = $(this).attr('data-clicked');
                 const action = $(this).attr('value');
 
                 if (!clicked) {
                     $.getJSON(scRoot + '/manage/showEpisodeStatuses', {
-                        indexer_id: curIndexerId, // eslint-disable-line camelcase
+                        indexer_id: currentIndexerId, // eslint-disable-line camelcase
                         whichStatus: $('#oldStatus').val(),
                     }, data => {
                         $.each(data, (season, eps) => {
                             $.each(eps, (episode, name) => {
-                                lastRow.after($.makeEpisodeRow(curIndexerId, season, episode, name, checked));
+                                lastRow.after($.makeEpisodeRow(currentIndexerId, season, episode, name, checked));
                             });
                         });
                     });
                     $(this).attr('data-clicked', 1);
                     $(this).prop('value', 'Collapse');
                 } else if (action.toLowerCase() === 'collapse') {
-                    $('.show-' + curIndexerId).hide();
+                    $('.show-' + currentIndexerId).hide();
                     $(this).prop('value', 'Expand');
                 } else if (action.toLowerCase() === 'expand') {
-                    $('.show-' + curIndexerId).show();
+                    $('.show-' + currentIndexerId).show();
                     $(this).prop('value', 'Collapse');
                 }
             });
@@ -3860,8 +3862,8 @@ const SICKCHILL = {
                 $('.ep_summary').hide();
                 $('.ep_summaryTrigger').on('click', function () {
                     $(this).next('.ep_summary').slideToggle('normal', function () {
-                        $(this).prev('.ep_summaryTrigger').attr('src', function (i, src) {
-                            return $(this).next('.ep_summary').is(':visible') ? src.replace('plus', 'minus') : src.replace('minus', 'plus');
+                        $(this).prev('.ep_summaryTrigger').attr('src', function (i, source) {
+                            return $(this).next('.ep_summary').is(':visible') ? source.replace('plus', 'minus') : source.replace('minus', 'plus');
                         });
                     });
                 });
@@ -4348,7 +4350,7 @@ const SICKCHILL = {
             let lastTxt = '';
             // @TODO This fixes the issue of the page not loading at all,
             //       before I added this I couldn't get the directories to show in the table.
-            const rootDirsWorkaround = function () {
+            const rootDirectoriesWorkaround = function () {
                 if (lastTxt === $('#rootDirText').val()) {
                     return false;
                 }
@@ -4362,9 +4364,9 @@ const SICKCHILL = {
                 loadContent();
             };
 
-            rootDirsWorkaround();
+            rootDirectoriesWorkaround();
 
-            $('#rootDirText').on('change', rootDirsWorkaround);
+            $('#rootDirText').on('change', rootDirectoriesWorkaround);
 
             $('#rootDirStaticList').on('click', '.dir_check', loadContent);
         },
diff --git a/sickchill/gui/slick/js/imageSelector.js b/sickchill/gui/slick/js/imageSelector.js
index 6bd7a54306..495fc8536b 100644
--- a/sickchill/gui/slick/js/imageSelector.js
+++ b/sickchill/gui/slick/js/imageSelector.js
@@ -66,23 +66,23 @@
         imagesContainer.height(scrollableHeight).css('maxHeight', scrollableHeight);
     }
 
-    function createImage(imageSrc, thumbSrc) {
+    function createImage(imageSource, thumbSource) {
         const image = $('<img alt="' + $('#showID').attr('value') + ' ' + imageType + '"/>')
             .attr('data-image-type', imageSelectorDialog.data('image-type'))
-            .addClass('image-selector-item').on('click', ev => {
+            .addClass('image-selector-item').on('click', event_ => {
                 $('.image-selector-item-selected').removeClass('image-selector-item-selected');
-                $(ev.target).addClass('image-selector-item-selected');
+                $(event_.target).addClass('image-selector-item-selected');
             });
 
         const wrapUrl = new URL(scRoot + '/imageSelector/url_wrap/', location.href);
-        if (thumbSrc) {
-            wrapUrl.searchParams.append('url', thumbSrc);
-            image.attr('data-thumb', thumbSrc);
+        if (thumbSource) {
+            wrapUrl.searchParams.append('url', thumbSource);
+            image.attr('data-thumb', thumbSource);
         } else {
-            wrapUrl.searchParams.append('url', imageSrc);
+            wrapUrl.searchParams.append('url', imageSource);
         }
 
-        image.attr('src', wrapUrl.href).attr('data-image', imageSrc);
+        image.attr('src', wrapUrl.href).attr('data-image', imageSource);
 
         image.appendTo(imagesContainer);
     }
@@ -117,9 +117,9 @@
                 if (selectedImage.length > 0) {
                     const image = selectedImage.data('image');
                     const thumb = selectedImage.data('thumb');
-                    const src = selectedImage.attr('src');
+                    const source = selectedImage.attr('src');
                     $('[name=' + imageType + ']').val((image ? image + '|' : '') + thumb);
-                    field.attr('src', src).addClass('modified');
+                    field.attr('src', source).addClass('modified');
                 }
 
                 $(this).dialog('close');
@@ -165,7 +165,7 @@
             imageSelectorElement.children('.error').hide();
 
             if (this.files) {
-                const loadFunction = ev => {
+                const loadFunction = event_ => {
                     const img = new Image();
                     img.addEventListener('load', () => {
                         if (imageTypeSizes[imageType].validate(img)) {
@@ -175,7 +175,7 @@
                             imageSelectorElement.children('.error').show();
                         }
                     });
-                    img.src = ev.target.result;
+                    img.src = event_.target.result;
                 };
 
                 for (const file of this.files) {
diff --git a/sickchill/gui/slick/js/rootDirs.js b/sickchill/gui/slick/js/rootDirs.js
index a58ccda1f8..65ebee46fb 100644
--- a/sickchill/gui/slick/js/rootDirs.js
+++ b/sickchill/gui/slick/js/rootDirs.js
@@ -27,15 +27,14 @@
         'warn',
     ];
     let length = methods.length;
-    const console = (window.console = window.console || {}); // eslint-disable-line no-multi-assign
+    const console = window.console || {};
 
-    while (length--) {
+    while (length > 0) {
+        length--;
         method = methods[length];
 
         // Only stub undefined methods.
-        if (!console[method]) {
-            console[method] = noop;
-        }
+        console[method] ||= noop;
     }
 })();
 
@@ -69,11 +68,12 @@ $(document).ready(() => {
         // Re-sync option ids
         let i = 0;
         $('#rootDirs option').each(function () {
-            $(this).attr('id', 'rd-' + (i++));
+            i++;
+            $(this).attr('id', 'rd-' + i);
         });
     }
 
-    function refreshRootDirs() {
+    function refreshRootDirectories() {
         if ($('#rootDirs').length === 0) {
             return;
         }
@@ -99,32 +99,31 @@ $(document).ready(() => {
         $('#editRootDir').prop('disabled', doDisable);
 
         let logString = '';
-        let dirString = '';
+        let directoryString = '';
         if ($('#whichDefaultRootDir').val().length >= 4) {
-            dirString = $('#whichDefaultRootDir').val().slice(3);
+            directoryString = $('#whichDefaultRootDir').val().slice(3);
         }
 
         $('#rootDirs option').each(function () {
             logString += $(this).val() + '=' + $(this).text() + '->' + $(this).attr('id') + '\n';
-            if (dirString.length > 0) {
-                dirString += '|' + $(this).val();
+            if (directoryString.length > 0) {
+                directoryString += '|' + $(this).val();
             }
         });
         logString += 'def: ' + $('#whichDefaultRootDir').val();
         console.log(logString);
 
-        $('#rootDirText').val(dirString);
+        $('#rootDirText').val(directoryString);
         $('#rootDirText').change();
         console.log('rootDirText: ' + $('#rootDirText').val());
     }
 
-    function postRootDirs() {
-        refreshRootDirs();
-        $.post(scRoot + '/config/general/saveRootDirs', {
-            rootDirString: $('#rootDirText').val()});
+    function postRootDirectories() {
+        refreshRootDirectories();
+        $.post(scRoot + '/config/general/saveRootDirs', {rootDirString: $('#rootDirText').val()});
     }
 
-    function addRootDir(path) {
+    function addRootDirectory(path) {
         if (path.length === 0) {
             return;
         }
@@ -143,10 +142,10 @@ $(document).ready(() => {
             setDefault($('#rootDirs option').attr('id'));
         }
 
-        postRootDirs();
+        postRootDirectories();
     }
 
-    function editRootDir(path) {
+    function editRootDirectory(path) {
         if (path.length === 0) {
             return;
         }
@@ -163,14 +162,14 @@ $(document).ready(() => {
             $('#rootDirs option:selected').val(path);
         }
 
-        postRootDirs();
+        postRootDirectories();
     }
 
     $('#addRootDir').on('click', function () {
-        $(this).nFileBrowser(addRootDir);
+        $(this).nFileBrowser(addRootDirectory);
     });
     $('#editRootDir').on('click', function () {
-        $(this).nFileBrowser(editRootDir, {
+        $(this).nFileBrowser(editRootDirectory, {
             initialDir: $('#rootDirs option:selected').val(),
         });
     });
@@ -202,7 +201,7 @@ $(document).ready(() => {
             }
         }
 
-        refreshRootDirs();
+        refreshRootDirectories();
         $.post(scRoot + '/config/general/saveRootDirs', {
             rootDirString: $('#rootDirText').val(),
         });
@@ -213,15 +212,15 @@ $(document).ready(() => {
             setDefault($('#rootDirs option:selected').attr('id'));
         }
 
-        refreshRootDirs();
+        refreshRootDirectories();
         $.post(scRoot + '/config/general/saveRootDirs', {
             rootDirString: $('#rootDirText').val(),
         });
     });
-    $('#rootDirs').click(refreshRootDirs);
+    $('#rootDirs').click(refreshRootDirectories);
 
     // Set up buttons on page load
     syncOptionIDs();
     setDefault($('#whichDefaultRootDir').val(), true);
-    refreshRootDirs();
+    refreshRootDirectories();
 });
diff --git a/sickchill/gui/slick/views/displayShow.mako b/sickchill/gui/slick/views/displayShow.mako
index 2196d022b5..01fa33875a 100644
--- a/sickchill/gui/slick/views/displayShow.mako
+++ b/sickchill/gui/slick/views/displayShow.mako
@@ -192,7 +192,7 @@
                                             % if show.network and show.airs:
                                                 <tr>
                                                     <td class="showLegend">${_('Originally Airs')}: </td>
-                                                    <td>${show.airs} ${("<font color='#FF0000'><b>(invalid Timeformat)</b></font> ", "")[network_timezones.test_timeformat(show.airs)]} on ${show.network}</td>
+                                                    <td>${show.airs} ${("<font color='#FF0000'><b>(invalid time format)</b></font> ", "")[network_timezones.test_time_format(show.airs)]} on ${show.network}</td>
                                                 </tr>
                                             % elif show.network:
                                                 <tr>
@@ -202,7 +202,7 @@
                                             % elif show.airs:
                                                 <tr>
                                                     <td class="showLegend">${_('Originally Airs')}: </td>
-                                                    <td>${show.airs} ${("<font color='#FF0000'><b>(invalid Timeformat)</b></font>", "")[network_timezones.test_timeformat(show.airs)]}</td>
+                                                    <td>${show.airs} ${("<font color='#FF0000'><b>(invalid time format)</b></font>", "")[network_timezones.test_time_format(show.airs)]}</td>
                                                 </tr>
                                             % endif
                                             <tr>
diff --git a/sickchill/oldbeard/network_timezones.py b/sickchill/oldbeard/network_timezones.py
index d726daf858..78728c9611 100644
--- a/sickchill/oldbeard/network_timezones.py
+++ b/sickchill/oldbeard/network_timezones.py
@@ -8,7 +8,7 @@
 from .. import logger
 from . import db, helpers
 
-# regex to parse time (12/24 hour format)
+# regex to parse time (12/24-hour format)
 time_regex = re.compile(r"(?P<hour>\d{1,2})(?:[:.](?P<minute>\d{2})?)? ?(?P<meridiem>[PA]\.? ?M?)?\b", re.I)
 
 network_dict = {}
@@ -16,6 +16,14 @@
 sc_timezone = tz.tzlocal()
 
 
+class NetworkTimezoneLoadException(Exception):
+    """"Error loading network timezones"""
+
+
+class GetNetworkTimezoneException(Exception):
+    """"Error getting network timezone"""
+
+
 def update_network_dict():
     """Update timezone information from SC repositories"""
 
@@ -78,7 +86,7 @@ def load_network_dict():
 
         network_dict.clear()
         network_dict.update(dict(cur_network_list))
-    except Exception:
+    except NetworkTimezoneLoadException:
         pass
 
 
@@ -97,7 +105,7 @@ def get_network_timezone(network):
 
     try:
         network_tz = (tz.gettz(network_tz_name) or sc_timezone) if network_tz_name else sc_timezone
-    except Exception:
+    except GetNetworkTimezoneException:
         return sc_timezone
     return network_tz
 
@@ -141,5 +149,5 @@ def parse_date_time(d, t, network):
     return result.replace(hour=hr, minute=m, tzinfo=network_tz)
 
 
-def test_timeformat(time_string):
+def test_time_format(time_string):
     return time_regex.search(time_string) is not None