Oooh boy, I have a whole list of terrible shows that haven't been cancelled...
Jimmy Kimmel Live! and Late Night with James Corden - Kimmel and Corden were never funny, and they come across as a middle-age men trying hard to be hip and cool with the times, and starting in 2016, they try and fail to emulate Colbert's success by doing "le orange man bad" political satirical jokes and are still doing it to this day. Speaking of...
Late Night with Stephen Colbert - It started out okay until mid-2015 and even to this day when Colbert does his shitty "le orange man bad" jokes, and is more of a news anchor than an actual comedian. You know, I liked his precursor show, The Colbert Report, because at least it wasn't standoffish, egotistical or annoying compared to what Colbert has become in this day and age.
The Daily Show - By the time Jon Stewart left, Trevor Noah took over his spot and he's just painfully unfunny. The show is on complete life support.
The Walking Dead - Its first season was good. It's also on life support and AMC is still milking it for whatever it's worth.
American Horror Story - It used to be fun, but it got worse and worse almost half a decade ago.
The Blacklist - The show died by 2015 or so.
NCIS - After Ziva left, the show automatically died.
Star Trek - There hasn't been any good Star Trek since the 2000s. Stuff like Picard and Lower Decks are trying hard to keep the franchise alive.
SpongeBob - The first four seasons (yes, I liked the fourth season, don't @ me) and the first movie were fun. The fifth season was okay, but it's not as good. Starting with its 6th season, the show declined real fast and after creator Stephen Hillenburg's tragic death of ALS, the network still continues to milk it dry with the likes of more movies and unnecessary spinoffs.
Simpsons - It's very cliche to say that the Simpsons is still bad and it needs to end, but it still reigns true. The show has now been focused on shitty Lisa episodes. Even comparing the modern day episodes to the classic vintage 90s episodes feels uncanny to me.
Disenchantment - It just sucks. That's it.
The Great North - It was unfunny then, and still unfunny now. It baffles that Bless thew Harts gets cancelled for two seasons, yet The Great North is about to air its third season.
Bob's Burgers - It was fun up until 2015 when the show overstayed its welcome.
Rick & Morty - Used to be good, but by the midway point of season three, the show automatically died and I haven't seen an episode of it since then.
Robot Chicken - It overstayed its welcome by the early 2010s. Ah well, it was fun while it lasted.
South Park - It's Matt and Trey sperging out and lecturing audiences with their political beliefs. The show died after the 2000s.
Animaniacs (2020) - An awful reboot that feels as if it's trying to be edgy for either 13-to-16-year-old teenagers or 3-year-old babies and is very trendy. Just stick with the classic 90s.
Jeopardy! - After Trebek's tragic passing, the show was never the same.