I never got into Friends. I didn't get into Seinfeld until the last 3 seasons, but I loved it. Does not hold up at all on a rewatch, but I think it's the case of it being very good, but mainly the first to do what it did. You watch it now, it's hard to remember how formulaic everything was prior to that. There were different formulas, but depending on which one you chose, it went one way. That's how I feel about shows like Friends or Cheers. They were very good at being very expected.
We actually started to rewatch the Simpsons, and I think it does ok as a rewatch. The weird part there is where do you stop. Seasons 1-3 are hit or miss, but Season 4 it's non stop bangers. But do we just pretend it ends at like Season 10?