Double, Double, Boy in Trouble: Bart switches places with his doppelganger, Simon, and discovers that Simon's wealthy family are plotting against him. (S20 Ep3/21) [AD,S]
The Simpsons Spin-Off Showcase: Troy McClure hosts a vision of the future of The Simpsons, in which Chief Wiggum becomes private detective Wiggum, P.I. (S8 Ep24/25) [AD,S]
The Great Louse Detective: When someone tries to murder Homer, Chief Wiggum seeks help from someone who understands the mind of a killer: Sideshow Bob. (S14 Ep6/22) [AD,S]