Bart finds his evil twin in the attic, Lisa becomes God to a race of tiny people, and aliens Kang and Kodos assume the identities of Bill Clinton and Bob Dole
Homer is offered a new job by mysterious businessman Hank Scorpio. But will Marge, Bart and Lisa be happy in their idyllic new home town?
Thanks to his abnormally hard head, Homer becomes a boxer. But is his skull strong enough for a fight against heavyweight champ Drederick Tatum?
Mr Burns' long-lost illegitimate son Larry - guest star Rodney Dangerfield - turns up. Mr Burns rejects him because he thinks he's a bit of an idiot.
Bart gets a job at a burlesque theatre. Several residents are keen customers, but others are less happy to have the showgirls peddling their wares in the town.
Milhouse's parents split up and his mum gets together with an American Gladiator called Pyro, his dad self-produces an album, and Milhouse goes a bit crazy
Lisa has a crush on Nelson the bully. But can she get him to change his ways?
The Flanders' home is blown down by a hurricane and the Leftorium is looted. Homer leads the rebuilding project, but will Ned be happy with his new house?
The Mysterious Voyage of Our Homer - Homer eats a dangerous chilli grown by Guatemalan psychiatric patients and embarks on a hallucinogenic trip
FBI agents Mulder and Scully - David Duchovny and Gillian Anderson - investigate Homer's claims that he has seen an alien in the woods
Marge opens a pretzel franchise after meeting the Pretzel Man - guest star Jack Lemmon. But Fat Tony wants a slice of the pretzel action.
An avalanche traps Homer and Mr Burns in a mountain cabin
Nanny Bobbins comes to the rescue of the Simpson family, where eldest son Bart is a tearaway and husband Homer doesn't lift a finger.
Homer gets a job on the Itchy & Scratchy Show, providing the voice of a new character
When Bart befriends a gay shop owner - guest star John Waters, Homer decides to take his son hunting, but not everything goes according to plan
Sideshow Bob - Kelsey Grammer - is once again released from prison, into the care of his respectable brother Cecil - David Hyde Pierce
Lisa starts a new career as a babysitter, and all is going well until Marge and Homer employ her to look after Bart and Maggie
When alcohol is banned in Springfield, Moe's Tavern becomes a speakeasy and Homer reinvents himself as the Beer Baron
Principal Skinner and Mrs Krabappel embark on a torrid affair, and bribe Bart to keep it secret
Bart buys Laddie, an amazing new dog, with a credit card that has accidentally been sent to Santa's Little Helper
Mr Burns loses all his money and employs Lisa to help him earn his fortune back. But they don't see eye to eye over ethical issues.
Homer discovers that a Japanese dishwashing powder company is using his face as its logo
A new employee at the power plant who has struggled to build a decent life is incensed that anyone as foolish as Homer could appear so affluent
Troy McClure hosts a vision of the future of the Simpsons in which Chief Wiggum becomes private detective Wiggum, P.I.
Bart and Lisa enrol in military school, but Lisa finds it hard to fit in. Guest starring Willem Dafoe.