Beavis and Butt-head

In 1993, a 5-year-old set his house on fire, killing his 2-year-old sister. The mother blamed American sitcom Beavis and Butt-head for making fire seem "cool". As a result, MTV removed all references of fire from their past and future episodes (not the 2011 run) and rescheduled it for 10:30pm instead of 7:00pm.