When watching a show a while after it’s released you can sometimes tell when a show was canceled because a season will end on a big (occasionally spiteful) event.
The following season after it’s picked back up occasionally stumbles a bit but I’m wondering what examples can you think of that were especially bad?
Galactica 1980 (shudder)
Warehouse 13, season 5 only happened because of the fans and boy was it disappointing
Veronica Mars. Incredible first season followed by 2 lesser but still good seasons. They made an incredible kickstarter video for a revival movie that I believe was the biggest kickstarter ever at the time. But the movie was really bad. There was another Hulu season after that I can barely remember watching except for the awful ending.
Some things should just stay dead.
Family Guy got worse every time it was cancelled and brought back, until eventually it was just a parody of itself while being as offensive as possible.