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After displaying a talent for judging contests, Moe is invited to appear on "American Idol"; Homer gets on Marge's nerves when he spends too much time at home.

The Simpsons

Judge Me Tender

Bart becomes convinced that his new neighbor is actually archenemy Sideshow Bob; to convince him that he is wrong, Marge takes Bart to the state penitentiary.

The Bob Next Door

Moe writes a letter, in which he threatens to run away with one of their wives, to Homer, the Rev. Lovejoy and Apu, who are on vacation with their children.

Moe Letter Blues

When radiation is released into the city, authorities suspend civil liberties; tired of being blonde, Lisa dyes her hair a darker color.

To Surveil, With Love

The Simpsons build a wind turbine in their backyard; Homer and Lisa try to help a whale beached by a storm.

The Squirt and the Whale

While finishing court-ordered community service, Homer befriends Chief Wiggum; Bart develops an addiction to a Japanese game.

Chief of Hearts

Mr. Burns is questioned when a police officer sees a stolen painting at the billionaire's estate; Smithers runs the power plant while Mr. Burns is away.

American History X-cellent

Flanders invites the Simpson family to a church retreat in Jerusalem in hopes of redeeming Homer.

The Greatest Story Ever D'Ohed

Bart and his classmate, Nikki (guest voice Sarah Silverman), develop a flirtatious rapport; first lady Michelle Obama (guest voice Angela Bassett) comes to Lisa's defense when she is ostracized for being an overachiever.

Stealing First Base

Homer and Marge have a parent-teacher conference with Principal Skinner after Bart fails to turn in his homework.

Postcards From the Wedge

When Lisa discovers that her Southern ancestors helped a slave escape to freedom, she presents the story during Black History Month.

The Color Yellow

Homer and Marge compete as part of a curling team at the 2010 Winter Olympics.

Boy Meets Curl

Homer and Marge Simpson raise Bart, Lisa and baby Maggie in Springfield, where eccentric residents make everyday life interesting.

Bart and the rest of his class decide to teach Mrs. Krabappel a lesson when she confiscates their cell phones.

S21 E2 | Bart Gets a Z