Simpsons Season 10, Episode 4: Treehouse of Horror IX

Season 10's annual trio of Halloween stories.

Hell Toupee – Homer gets a hair transplant from recently executed Snake Jailbird (who was sentenced to death after breaking the city's three strikes law), who proceeds to possess Homer, forcing him to kill the people who witnessed Snake's final crime.
The Terror of Tiny Toon – Bart and Lisa use plutonium as a remote control battery after which the radioactivity sucks them into a Halloween episode of Itchy and Scratchy where they become part of the gruesome cartoon action.
Starship Poopers – Marge reveals that Kang is Maggie's real father and the family become guests on The Jerry Springer Show.