"Day of the Jackanapes"
"Original Air Date: 2/18/01"
Krusty is really pressured at work to make all sorts of changes to his show and gets fed up and decides to retire (for the fifth and final time). In a TV interview when asked about episodes of his first season he admitted to having a thing for Judge Judy and he accidentally erased all of his tapes. Sideshow Bob sees that TV interview from prison and becomes outraged because Krusty's first season was the only season Sideshow Bob was on the show. He gets released from prison and starts to plan his revenge. He gets a job as an assistant janitor at Springfield Elementary and he hypnotizes Bart to kill Krusty at his fairwell show. At the show, Krusty makes a touching tribute to Bob saying he was sorry for driving him to a life of crime. Bob then changes his mind, but Bart is just approaching Krusty with a bomb attached...
Kelsey Grammer guest stars as Sideshow Bob.
This is Episode #261 in The Simpsons series. It is Episode #13 in Season 12.