He's My Brother

Itchy and Scratchy: The Movie - S4-E6

Trivia: Lisa refers to Dustin Hoffman and Michael Jackson voicing guest characters in the "Itchy & Scratchy" movie. She says "They didn't use their real names, but you could tell it was them." This is a sly reference to Hoffman and Jackson's pseudonymous appearances in The Simpsons, in Seasons 2 and 4, respectively.

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A Tale of Two Springfields - S12-E2

Trivia: Springfield is split into two area codes, 636 and 939. This would put half of Springfield in Missouri and the other half in Puerto Rico.

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Duffless - S4-E16

Trivia: Lisa says she is laughing at a joke from "Herman's Head." Yeardley Smith, the voice of Lisa, was one of the stars of "Herman's Head" (1991).

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Brother From Another Series - S8-E16

Trivia: Sideshow Bob is voiced by Kelsey Grammer, who plays the title role in the hit comedy series Frasier. The voice of Bob's brother Cecil (hence the title of the episode) is provided by David Hyde Pierce, who is Frasier's brother Niles in the show. There are many in-jokes included in the episode - the white type caption on the black background bridges scenes in Frasier, and "Maris" is Niles' wife, never seen but always talked of, for example.

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Trivia: The character Professor John Frink is named after a producer of the show and based on Jerry Lewis's The Nutty Professor. Professor Frink alludes to being charged with copyright infringement in connection with Jerry Lewis at a convention.

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The Way We Was - S2-E12

Trivia: The poem that Homer attempts to read is the weird poem that Steve Martin recites in both "The Man with Two Brains" (1983) and "L.A. Story" (1991) ("Oh pointy birds, oh pointy pointy...").

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I Love Lisa - S4-E15

Trivia: Ralph Wiggum was named after Ralph Kramden on "The Honeymooners" because the character was intended to be a loudmouthed smaller version of Homer. He wasn't established as Chief Wiggum's son until "I Love Lisa."

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Trivia: The Simpsons continually pokes fun at the Fox network because it is the only show on Fox that does not have to be checked by its executives and edited accordingly. This also means the producers of the show can get away with a lot more on prime time television.

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Marge in Chains - S4-E21

Trivia: Marge is accused of shoplifting and hires Lionel Hutz, played by Phil Hartman, as her attorney. In the middle of the trial, Lionel gets an urge for whisky, so he calls his AA sponsor, David Crosby of Crosby, Stills, Nash and Young. When Crosby answers the phone he is looking at the CSNY emblem on an album, which Phil Hartman designed himself in the late '70s.

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Lisa's Substitute - S2-E19

Trivia: The substitute teacher is actually voiced by Dustin Hoffman, who is credited under a pseudonym.

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Last Exit to Springfield - S4-E17

Trivia: Mr Burns' reaction - right down to his animation - to the singing of the Union towards the end is a direct spoof of the Grinch (from The Grinch Who Stole Christmas) by Dr. Seuss. His characters also spoke in rhyme, which is why some of Mr Burns' lines are nonsense.

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Stark Raving Dad - S3-E1

Trivia: "John Jay Smith," credited as a guest star at the end of the episode, is in fact Michael Jackson, who starred as the man who thought he was Michael Jackson under a pseudonym. Michael is a massive fan of the show and also co-wrote the Simpsons' early hit, "Do the Bartman."

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Trivia: The salesman character Gil, who can't catch a break, is based on Jack Lemmon in Glengarry Glen Ross (1992).

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Trivia: Initially, Yeardley Smith auditioned for the voice of Bart and Nancy Cartwright for the voice of Lisa. They play them the other way around.

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Trivia: The Simpsons are named after Matt Groening's own immediate family. His parents are called Margaret and Homer, and he has sisters called Maggie and Lisa. Bart is the only one not named after a Groening, although he takes Matt's place in the Simpson family.

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Trivia: The only voice artists who regularly perform as only one character are Yeardley Smith as Lisa and Marcia Wallace as Edna Krabappel. Yeardley has also voiced different versions of Lisa (Lisa Jr. and Lisabella) in at least two other episodes.

He's My Brother