Simpsons Season 7, Episode 6: Treehouse of Horror VI

A Halloween special which is divided into three short stories:

Attack of the 50-Foot Eyesores–An ionic storm brings Springfield's oversized advertisements and billboards to life and they begin attacking the town.
Nightmare on Evergreen Terrace–In a parody of the Nightmare on Elm Street movies, Groundskeeper Willie attacks schoolchildren in their sleep to get revenge on the parents who did not save him when he burned to death.
Homer3–While finding a hiding place while preparing for an upcoming visit from Patty and Selma, Homer steps into a portal behind a bookcase that takes him into a three dimensional world.