An update to Emby for Apple TV is currently rolling out. Here are the highlights:

• tvOS user support. App data is now stored per user on Apple TV
• MPV is now the default player when the app is freshly installed
• Filtering by favorite Live TV Channels is now available in the Channels tab of Live TV
• You can now sort Live TV Channels in the Channels tab of Live TV
• Live TV, Movies, Shows, Music and Home search screens have been updated to align with the webapp. You may see additional item types returned on these screens now
• TV Channels and Songs now display on the Home favorites menu
• Improved handling of Genres, Studios and Tags in search results
• Native Player
  • Audio content in M4A containers should direct play
  • Program information when playing a channel is displayed in the OSD
  • Live TV Info in the OSD refreshes automatically
  • If you're controlling the app remotely you can now mute / unmute
• MPV
  • MPV now uses "bwdif" for when playing interlaced content.
  • Program information when playing a channel is displayed in the OSD
  • Live TV Info in the OSD refreshes automatically
  • Tabs in OSD now match the orderding of the native player
  • Tabs in OSD are now hidden when appropriate instead of disabled to match native player
  • Look and feel updates to OSD and transport/seek bar to match native player
• Bug Fixes
  • Fixed a bug that prevented Live TV Series recording settings from being changed
  • Fixed a bug in MPV where the menu button would not work to stop playback
  • Fixed a bug that stopped playback when using MPV when invoking Control Center
  • Fixed a bug that prevented the ability to change music quality settings