The Simpsons 138th Episode Spectacular

Troy McClure hosts a behind-the-scenes look at the show, including clips of the series' beginnings as shorts on "The Tracy Ullman Show," Simpsons trivia questions, and unaired scenes from popular episodes.

Guest Stars

Buzz AldrinBuzz Aldrin (voice)

Glenn CloseMona Simpson (voice)

Phil HartmanTroy McClure / Lionel Hutz (voice)