IMDB
8.015
Country
Duration
22 min
Air Date
2001-01-07
Actors
Dan Castellaneta (Homer Simpson / Abe Simpson / Barney Gumble / Krusty (voice))
Julie Kavner (Marge Simpson / Patty Bouvier / Selma Bouvier (voice))
Nancy Cartwright (Bart Simpson / Nelson Muntz / Ralph Wiggum (voice))
Yeardley Smith (Lisa Simpson (voice))
Hank Azaria (Moe Szyslak / Chief Wiggum / Apu / Comic Book Guy / Carl (voice))
Harry Shearer (Ned Flanders / Mr. Burns / Smithers / Skinner / Lenny (voice))
Overview
While working as a human guinea pig (to pay off the family's lost savings after making a bad investment), Homer discovers the root cause of his subnormal intelligence: a crayon that was lodged in his brain ever since he was a boy. He decides to have it removed to increase his IQ, but discovers that being smart does not necessarily equal being happy.