For me if I had to pick a good contender it would be the UK version of The Office.
I know many tend to debate how Ricky Gervais really fell off and how he repugnantly acts like a whiny centrist edgelord but me personally IMO I actually don’t think he was ever funny not even a little.
His big break through television was just so painful to sit through it’s so charismatically boring the characters are completely generic at best (notably Tim) or straight up insufferably unlikable at worst (especially the protagonist David FUCKING Brent) and most importantly the humour is just embarrassing.
Always seemed like The Thick Of It but without the nuisance tongue in cheek and charming satire.


Seinfeld.
I think the show is ok, but could’ve been good with anyone else as Seinfeld. Jerry is the worst part of the show, especially the stand up bits at the beginning and end. I don’t understand how he was ever popular
“wHaT’s ThE dEaAaAaAaAAL WiTh _____??”
…I don’t understand how that guy apparently holds a ridiculous amount of power in the entertainment industry lol.
“Getting coffee with people in cars” or whatever it’s called really revealed how nasty and self obsessed Jerry Seinfeld is to me. Up to that point he was passably funny to me or, at least, the show was. Looking back it was really Larry David, and the other cast that carried it all.