Teevee for WP is a WordPress plugin that acts as a bridge between WordPress and a custom Apple TV TVML app.
In wp-admin, the plugin allows content creators to attach video meta data to a WordPress post. The plugin uses this meta data to provide end-points for Apple's TVML XML.
The plugins creates a menuBarTemplate with a list with menuItems for each TV series, with a "Latest" items displaying most recent show. Episodes are displayed in a TVML listTemplate.
Check out the Apple TV Markup Language reference for more info.