YouTube, YouTube TV and Music down for many
Thanks for your reports about YouTube, YouTube TV and YouTube Music access issues. We're working on resolving this and will let you know once fixed. We apologize for any inconvenience this may cause and will keep you updated.
— Team YouTube (@TeamYouTube) October 17, 2018
At about 8:20 I noticed that the channel I was watching went south. Downdetector and Team YouTube seem to indicate things are bad all over. As of 8:41CST Team YouTube’s Twitter page acknowledged there are errors with the YouTube, YouTube TV, and YouTube Music access.
Issues vary platform to platform – on Android I can see the video but not pull any channel info. On Roku I can stream some channels and see channel info. Personally not having issues with YouTube Music as far as I can tell.

What are you doing during the great Alphabet Catastrophe of 2018? We’re watching Ozark on Netflix until the apocalypse passes.
Update: about midnight I tried writing a review for an app and got an error so this may be more widespread than just streaming services. That said, streaming was working an hour ago.