13. "Comedians" - Beavis & Butt-Head
The first episode of Beavis and Butt-Head's third season sees the titular duo attempting to get rich by becoming stand-up comedians (or "stand-up chameleons", as Butt-Head puts it).
Things don't go well, leading to the pair setting the comedy club on fire and laughing as it burns down. It's not exactly ultra-provocative, but it did unfortunately inspire a five-year-old Ohio boy, Austin Messner, to set fire to his own trailer home, killing his two-year-old sister in the process.
MTV responded by immediately pulling the episode and moving the show to a 10:30pm time slot (from 7pm), as well as removing any references to fire on their network.
Though they did also re-edit the episode to make it less objectionable, ultimately the decision was made to take it out of rotation completely, a decision which still stands some 25 years later.