The Simpsons The Simpsons

The Simpsons will celebrate its 20th anniversary with a hour-long special and a star-studded new episode.

Daniel Radcliffe gets the Twilight treatment on The Simpsons

Filmmaker Morgan Spurlock (Super Size Me) will be on hand to present The Simpsons 20th Anniversary Special: in 3-D! on Ice, a documentary that examines the "cultural phenomenon" of the animated series, which debuted on Fox in 1989. The special will air on Sunday, Jan. 10, at 8:30/7:30c.

Immediately preceding the special at 8/7c will be the series' 450th episode, "Once Upon a Time in Springfield," which will feature the voices of Anne Hathaway, the late Eartha Kitt and Jackie Mason (who will reprise his role as Krusty's father, Rabbi Hyman Krustofski).