I use RSS to watch YouTube videos. I collect the ULRs of the videos I want to watch in a text file using my feed reader (Newsboat). In the evening a script transfers the file to my TV computer and fetches the videos with yt-dlp.

To play the videos I use another script, which plays and then trashes the video files in a loop.

Pros: no ads, no buffering videos during playback, plays videos without interaction (like TV), can collect video URLs over day, don’t have to bother with YouTube’s user interface, cookies etc.