The Office (US) could have ended with the proposal in the rain.
It probably should have ended with the wedding in Niagara.
It definitely should have ended when Michael left. Don't give me your Robert California bullshit either. The series was already on fumes and the last two seasons were garbage.
I think Brooklyn 99 went on for too long. It started super strong. Whacky funny detective BUT he's also really good at his job.
When i stopped watching it was nothing but whacky. I liked chelsea perettis character in the beginning and then i think she got pregnant or something and after that she was just that omnipotent annoying character who would lise her job every day of the week.
Season 7 finale was perfect… and then season 8 happened. It did get better with seasons 9 and 10, but the Ori arc was just a weird tonal shift from the original Egyptian mythos.
I love the show, but that’s my hot take. Should’ve ended with season 7 and just transitioned over to Atlantis instead of running alongside it.
Went on too long? Mr. Pickles. I like the show but it continued on past the third season as Momma Named Me Sheriff and it is significantly worse. It just feels like one of those generic crude humor shows by Roger Black and Waco O'Guin that Netflix pumps out.
There's also How I Met Your Mother and Two and a Half Men.
Ended too soon? Jeff and Some Aliens. A great dark comedy cartoon that I have rewatched several times.
Too soon: The Critic. We deserved more than 23 episodes of this brilliant show. It's too bad that the first season was on ABC who didn't know what to do with it, as they put it on before Home Improvement which was a completely different concept.
Too late: King of the Hill. It should've ended when Luanne and Lucky got married like it supposed to. Few of the episodes after that were memorable, and the finale wasn't as good as it could've been.
Both: Family Guy. The pre cancellation seasons were funny and the first couple of seasons after the revival were as well, but it insisted upon itself after awhile and the characters became more mean spirited than they originally were.
Too soon: Counterpart. A truly marvelous science fiction thriller that explored the concept of a parallel universe and starred J. K. Simmons. I'm still fuming that Starz cancelled it after two seasons. It's not even available to stream anymore...
Even though I'm a fan of both shows 9-1-1 and 9-1-1: Lone Star have both been going on for far too long, them being forced to keep the teams together and not have any major character deaths, job changes, or major new additions really hampers how much they can do with the characters.
Terra Nova, Whiskey Cavalier, The Premise, and Y: The Last Man all ended too soon as well.
Only six episodes were produced, and they eventually aired, but I did not find this out until years later. The internet ended a longstanding era where you could be aware of and interested in something, but know fuck-all about it, and have no sensible way of learning more. So I'd heard of Kevin Smith movies - but never seen any. Watching the Clerks movie would have taken a trip to a physical video-rental store, with my parents, and then convincing them (and myself) to rent a vulgar black-and-white movie for all of us to watch together. Wasn't happening. I was more likely to rent and watch any of the R-rated films that somehow got cartoon adaptations - which were part of that same impotent awareness. Robocop and Ghostbusters and fuckin' Starship Troopers were advertised anywhere and everywhere, and kids liked the shallow cool parts in the trailers, so executives said "fuck it" and licensed no-budget G-rated spinoffs to sell toys.
Anyway. The Clerks animated series exists because Disney wanted an adult-ish show to compete with The Simpsons. Everyone did. Disney knew they had a gap in their demographics for twenty-something dorks with disposable income. Aaand then they handed the finished episodes to ABC, who used a focus group of old farts and children. Of course it bombed. The first episode aired was a fake clip show full of flashbacks to episodes that did not exist. No, sorry, just checked Wikipedia: that was the second and final episode aired. The premiere ended with a wacky consequence-free style change, where the outsourced animators rebelled and delivered a lolrandom dance party.
Utopia : John Cusack repeating "what have you done today to earn your place in this world"? still gives me chills. Deserved to be continued. Then I watched the UK version, equally good and aborted too