Selma and Grampa embark on a May-December romance, and Bart and Lisa get into trouble with deliverymen over cardboard boxes.

Marge goes online for the first time and becomes obsessed with a role-playing game that Bart and many of their neighbors are playing. Meanwhile, Lisa develops her own obsession–for soccer–and…

Bart goes from hero to goat on his Little League team after an error in the championship game. Meanwhile, Homer falls asleep on a bed in a department store. When…

In a parody of “24,” the school’s Counter Truancy Unit tries to stop three sixth-graders planning to disrupt the school bake sale with a stink bomb.

A child psychiatrist suggests drumming to channel Bart’s energy, and the boy proves he’s got the beat when he shows some talent on the skins.

Homer fires up the crowd at a Springfield Isotopes baseball game and is chosen to be the team’s new mascot. He immediately becomes a popular attraction and the Isotopes start…

Bart fails four consecutive history exams and the school psychiatrist recommends that Bart repeat the fourth grade.

Homer uses his medical insurance to buy Dimoxinil, a miracle hair-growth formula. After growing luxurious locks, he’s given a promotion which allows him to hire a secretary named Karl and…

Bart fails four consecutive history exams and the school psychiatrist recommends that Bart repeat the fourth grade.

Homer uses his medical insurance to buy Dimoxinil, a miracle hair-growth formula. After growing luxurious locks, he’s given a promotion which allows him to hire a secretary named Karl and…

Homer fires up the crowd at a Springfield Isotopes baseball game and is chosen to be the team’s new mascot. He immediately becomes a popular attraction and the Isotopes start…

The results from their aptitude tests cause Bart and Lisa to make 180-degree turns in their behavior.

The results from their aptitude tests cause Bart and Lisa to make 180-degree turns in their behavior.

When Prohibition is revived in Springfield, Homer and Bart supply the town with alcohol.

Bart discovers Principal Skinner and Mrs. Krabappel kissing, and it’s not long before the whole town knows of their secret affair.

Lisa develops a crush on Nelson and tries to change him into a better person. Meanwhile, Homer finds an autodialer and starts a telemarketing scam.

Marge’s new pretzel franchise is failing until Homer strikes a deal with Fat Tony, Springfield’s local mobster.

On a family vacation, Lisa tries on a new identity to fit in with the other kids at the beach. Jealous, Bart reveals her true nerdiness to the group.

Bart and Milhouse wonder if anything interesting happens to the citizens of Springfield, which leads to a series of interconnected vignettes.

After winning a motorcycle at a dance contest, Homer becomes part of a motorcycle gang. But when he puts Marge’s photo in a biker magazine, a much tougher gang takes…

When Bart commits an extremely destructive prank, he is given Focusyn, a pill to help him concentrate in school. At first the results are impressive, and then Bart starts believing…

Homer’s failed do-it-yourself project gets mistaken for “outsider art.” Suddenly in the limelight, Homer must come up with new “works” to impress the art world.

When clean-living Ned Flanders wants to experience a new side of life, Homer takes him to Las Vegas. After a drunken binge, they marry a pair of cocktail waitresses.

Indebted from a mishap at the Smithsonian, Homer lets a cell phone company put a transmitter in the house. Forced to share a room with Bart, Lisa resents Homer until…

After a riot at a sci-fi convention, Mayor Quimby hires Homer as his bodyguard, and Homer witnesses the rampant corruption in town politics. When Homer takes a stand, he runs…

Homer and Bart try to make money by selling used grease. Meanwhile, Lisa organizes a school dance but feels alienated when a new classmate and her friends try to act…

Stuck at home with a cold, Lisa gets addicted to a video game and neglects her homework. Her A+++ on a test wins the school a grant, but when she…

After accidentally ruining the family’s Christmas tree and presents, Bart buries the evidence and claims a burglar stole everything. When Kent Brockman does a human interest story on the family’s…

Unmasked as an impostor, Principal Skinner flees to Capital City to reclaim his former life as a shiftless good-for-nothing. The people of Springfield gain a newfound appreciation for him and…

In “The Homega Man,” Homer faces a post-apocalyptic Springfield. Next, Bart attempts to become Superfly in “Fly vs. Fly.” In “Easy-Bake Coven,” amidst a witch hunt in 1649, Marge and…

Lisa agrees to enter a Krusty-sponsored “Li’l Starmaker” competition and panics when another contestant (guest voice Fantasia Barrino) outperforms her.

Homer and Marge recall the story of their first kiss at a summer camp when they were children—an event which was not all happy, as Homer (unwillingly) betrayed Marge by…

Marge writes a romance novel with characters based on Homer and Ned Flanders that becomes a hit. Meanwhile, Homer gets fired from the power plant again and becomes an ambulance…

“Reaper Madness” – Death becomes Homer and our hero must learn to reap what he sows (and pull a fast one on the almighty). “Frinkenstein” – Soon to be Nobel-prize…

The 13th Treehouse of Horror episode, consisting of three self-contained segments. Send in the Clones – Homer buys a hammock that can produce clones of himself. He creates numerous clones…

Homer falls in love with the high life of flying in private planes when he saves Mr. Burns from drowning, and Burns repays him by flying him to Chicago for…

The family is at a church fund-raiser, where Homer tries to ensure his rubber duck onto victory, but Flanders wins the big prize, which he doesn’t want and gives it…

When Marge learns Springfield Elementary is the worst school in the state, she and Homer rent an apartment in the upscale Waverly Hills school district so Bart and Lisa can…

Mail from forty years earlier is discovered, and a letter from Homer Simpson’s mother’s old boyfriend states that he is Homer’s true father. Homer sets out to find his supposed…

Never one to miss the opportunity to make a quick buck, Homer cashes in on Maggie’s bout of chicken pox. He decides to host a Pox Party and charges parents…