Every time Homer travels to the past, he kills a prehistoric creature, drastically altering the present (e.g., Ned Flanders becoming the unquestioned dictator of the world).
It cemented the Treehouse of Horror format as a venue for high-concept storytelling that didn't need to worry about series continuity.
To solve overcrowding in detention and budget cuts in the kitchen, Principal Skinner begins cooking and serving students to the faculty.
Groundskeeper Willie attempts to help, only to be immediately axed in the back. 2. Time and Punishment A spoof of Ray Bradbury’s short story A Sound of Thunder .
Homer goes mad from the lack of "TV and beer," leading to the iconic "No TV and no beer make Homer go crazy" scrawled on the walls.