Thread:Ironwestie/@comment-46026608-20200629231805/@comment-31549837-20200630001720

Ok. "Open the polymer" effectively means "switch back to the old YouTube layout." You effectively have to put this “disable polymer” thing into the URL of a page because YouTube decided to be annoying and got rid of the button to switch back to the old layout.

You have to switch to the old layout to see notes on videos, which is how that playlist is set up. It took awhile to get, but hopefully this link works for you: https://www.youtube.com/playlist?list=PLm_wLG0IrtdOqit_3nPziwuD2MotQAQJ_&advanced_settings=1&disable_polymer=1