- The Simpsons. Let it die, Fox/Disney.
- Futurama. The Fox seasons is it’s golden age. Now the show is sci-fi South Park. They have a show set in the future, but the writers make episodes based on the present.
- The Walking Dead. TWD dyed in season 2. They made 13 episodes out of 6 issues of the comic. It was poorly written, characters act like idiots, and the twist in Episode 7. You can see it coming from a mile away.
Why should you want to cancel shows? When you don’t like the show, don’t watch. When nobody likes a show, nobody watches, no ad income -> exit show.
Of your example, I never heard of the last one, and to be honest, the name doesn’t sound interesting enough to find out whatnit’s about. Simpsons I haven’t seen in ages (does it still run?) And I’m happy with the 2nd reboot of Futurama, rewatching from the start.
Just because you don’t like a show it should be canceled. Ignoring it is way easier. When it’s worth to have it canceled, it’s not worth to fuss about.