The gang celebrates Halloween at Stuart’s comic book store. Meanwhile, Leonard seduces Penny with science.

Homer and Barney compete to be the first “average” American in space.

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…

A “Behind the Music”-style look at the Simpsons, narrated by VH1’s Jim Forbes, shows their rise to stardom–and the “private hell” that followed.