Episode guide

Sibling Rivalry

Written by Cherry Chevapravatdumrong and directed by Dan Povenmire

After a pregnancy scare, Peter reluctantly agrees to get a vasectomy. But after the operation, Peter's sex drive becomes nonexistent. When Lois packs on some extra pounds, Peter's interest is renewed and things heat back up in the bedroom until her unhealthy eating habits get the best of her. Meanwhile, Stewie's half-brother and archrival Beltram confronts him and they declare an all-out war for control over the playground.

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Sibling Rivalry on DVD

Episode number: 422
Production number: 4ACX24
Season: Season 4 (2005/2006)

First broadcast:
Sunday March 26, 2006

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Cultural references

Cultural references from Sibling Rivalry.

ReferenceDetails
B.C.Stewie makes a referance to this comic strip during this episode.
Camryn ManheimPeter alludes to Lois' weight gain as similar to that of "The Practice" star Camryn Manheim.
Christopher MoltisantiTony Soprano's protege helps Stewie plant a pine tree in the woods.
Dungeons and DragonsFor their sexual role-playing, Peter uses the role-playing game Dungeons & Dragons. While Lois claims to be a private schoolgirl who needs to be spanked, he claims he is a Paladin with 18 charisma and 97 hit points who has a Helm of Disintegration and does 1d4 (one roll of a 4 sided die) damage as his half-elf mage wields his +5 Holy Avenger.
GladiatorStewie's battle command "At my signal, unleash hell" alludes to Russell Crowe's commands in the movie "Gladiator"
HogzillaWhen Lois comes in the room really fat Peter says "Hey, Hogzilla!" This is in reference to a picture of a supposedly world record size hog which was shot by hunters. The hog in the photo is named Hogzilla (a play on the famous monster Godzilla).
Ice AgePeter describes the times he froze his nuts, and Scrap is on an icey mountain trying to get a nut out.
KelisPeter is seen singing a Kelis song "Milkshake" to the prison inmates
Lee Harvey OswaldFlashback portrays the alleged assassin as trying to kill the "second gunman" on the grassy knoll
Lord of the RingsThe Eye of Sauron is portrayed as desperately seeking his lost contact lens.
Morgan FreemanMorgan Freeman is satirized as commonly narrating the films he stars in
Pirates of the CarribeanThe sword fight between Stewie and Bertram has similarities to that of the one between Jack Sparrow and Will Turner near the beginning of the movie
Rambo First Blood Part IIStewie is in a fight for power with his half brother Bertram. He decides to take him out through stealth. Suddenly the show focuses on a set of eyes moving in the sandbox. Suddenly Stewie jumps out and attacks Bertram's friends who are guarding the playground. He is dressed like Rambo from "Rambo: First Blood Part II". It is funny because he mimics every aspect of the movie including Rambo's eyes moving in the mud wall as he jumps out and attacks the Vietcong.
Richard MulliganBertram chooses the star of "Soap" and "Empty Nest" as his clue for Twenty Questions.
Roller-dancing
Star Wars: A New HopeBertram's statment "I sense something, a presence I haven't felt since..." is a line spoken by Darth Vader about Obi-Wan Kenobi's presence on the Death Star.
The Blues BrothersStewie asks Elwood, "you me me my cheez whiz boy?" Elwood tosses him a can.
Where's WaldoBrian and Stewie find Waldo in an Abercrombie & Fitch catalog spread
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Episode notes

Facts, bloopers, and visual gags from Sibling Rivalry (not cultural references).

Note
The Volume 4 DVD commentary for this episode is given by Seth MacFarlane, David Goodman, Mike Henry, Cherry Chevapravatdumrong, and Dan Povenmire.
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Characters (and voice credits)

CharacterVoiceNotes
BertramWallace Shawn
Brian GriffinSeth MacFarlane
Chris GriffinSeth Green
Lois GriffinAlex Borstein
Meg GriffinMila Kunis
Peter GriffinSeth MacFarlane
Stewie GriffinSeth MacFarlane

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