When I tried to set up my YouTube account on my new Apple TV and wanted to open my favorites, everything I got was:

No content was found. There is a problem communicating with YouTube. Try again later.

Bummer! It didn’t seem to be a connection or software issue as everything else (including watching YouTube videos) worked. So here is how to fix that.

1. Go to youtube.com, click your user name and then ‘Account’. Then select ‘Activity Sharing’. (or be lazy and go directly to that page)
2. Check both the ‘Subscribe to a channel’ box and the ‘Favorite a video’ box.
3. Save your changes.
4. Sorry, that’s it.