YouTube TV made the announcement on Twitter today afternoon. Surround auido first came out on Android and Google TV as well as Roku during June and with specific Amazon Five TV devices following later in the month.
It will "automatically get 5.1 audio whenever it's available" using an appropriate speaker system. The majority of programming (live or DVR and video-on-demand) is compatible. To check programming:
1. Launch the YouTube TV app on your TV and play a YouTube video. 2. Click on the controls for the player Then, select more . 3. Select the bug . 4. Stats about nerds will appear shown on top of the video when the video is playing.