From YouTubeTV via Twitter
https://twitter.com/youtubetv/status/1508555731087204356?s=21&t=NwTm5Xy7mYxZEvzo8wvi2Q
Any six-weeks-later update?
Thanks for the post and inquiry.
For more information about that channel's features and functionality, you'll want to contact the channel provider support directly to inquire further. Many channels on Roku are developed and maintained by the channel provider themselves.
Thanks,
Danny
@HaightMale Google has not released 5.1 for YouTube TV as of yet. It’s not up to Roku
It finally works now on my streambar! Finally!!!!
Its still in testing phase (per account), and is not rolled out to all accounts/all devices.
There are widespread reports of significant latency when in EC-3/AC-3 codec output mode, so make sure you test that.