Photos: The Simpsons

The Simpsons are evicted from Springfield and join an off-the-grid community in "At Long Last Leave," the milestone 500th episode of "The Simpsons," airing Sunday, Feb. 19 (8:00-8:30 PM ET/PT) on FOX.

Matt Groening, creator of "The Simpsons,'' guest appearance in "The Simpsons" (April 14, 2004)

The whole gang from Fox's "The Simpsons."

Krusty the Clown from "The Simpsons."

Selma Bouvier on The Simpsons

The annual "Ghoultide" Halloween trilogy "Treehouse of Horror XVII" on "The Simpsons."

Abraham "Grampa" Simpson.

From left, Bart, Santa's Little Helper, Homer, Marge, Maggie and Lisa Simpson celebrating their 350th episode.

Ray Magini (guest voice Ray Romano) and Homer Simpson fix the Simpson roof on the "Don't Fear The Roofer" episode.

The Simpsons face the their annual tricks and treats and Halloween freaks in "Treehouse Of Horror XII."

A scene from the episode "Alone Again, Natura-Diddly" on "The Simpsons."

Bart seeks advice from NFL Hall of Famer Joe Namath, who makes a guest voice appearance as himself, in "The Simpsons" in 1997.

Rock superstars U2 provide their own voices in the 200th episode of "The Simpsons" entitled "Trash of the Titans" in 1998.