@AppleTV has basically made @YouTubeTV unwatchable .... the buffering and low streaming quality is nuts. Going to have to go back to real tv if this doesn’t get fixed 
We're experiencing a widespread quality issue between our app and Apple TV. We're working hard on a fix, but don't have an exact ETA yet. In the meantime you can try manually adjust the playback quality back up to 720p or 1080p by selecting the 3-dot icon on the bottom right.