One of the most comprehensive "best TV" lists I've ever seen. If you're short on time, iMiscellaneous made a list of just the top 100. You can see it here: https://www.listchallenges.com/top-100-tv-shows-of-all-time-2022
(Speaking of which, since both lists use the same url, I had to link to a different section of the site.) The actual link is here:
https://www.treasuretv.org/all-time
On another note, I transcribed Total Film's Best TV Shows list a few years ago. When I did that, I did some editorializing with some of the entries, and for that, I apologize, particularly for the Sex and the City entry, which was overly mean-spirited and demeaning. My task is archival, not critical. (That being said, some of the entries have not aged well...)
Enjoy!