A Tale of Two Springfields/References

Cultural references

 * The title of the episode is a reference to the book  by Charles Dickens.
 * The blackboard gag refers to the which was two days after the episode was aired. A controversy surrounding the election was the supposed use of subliminal messages.
 * The timing of the episode coincides with Matt Groening's native northwest Oregon splitting into two overlapping area codes ( and ). Such a was often unpopular due to existing phone numbers changing, and now the alternative method is an, whereby an area is given a new code for new numbers but existing numbers do not change.
 * Todd's woodpecker laughs like after it attacks Bart.
 * and Marty mention English actress.
 * Bill and Marty use voice clips of an impression saying "oh, behave!" and of  saying "Whachu talkin' 'bout?".
 * The scene with Homer, Lenny and Carl having lunch in the nuclear power plant has a reference to the movie . While writing the new area code on his hand, Homer complains that he already has enough things to remember and a close-up of his hand shows the writing "Lenny=White, Carl=Black." This is a reference to the second last scene in Pulp Fiction, in which The Wolf is called to help resolve a problem. On a pad of paper before he meets up with Vincent and Jules, he writes "Vincent-White, Jules-Black" in order to distinguish between the two.
 * Homer telling the representative to "keep walking" is a reference to how poor the Cardinals franchise had been at the time the episode was created.
 * Homer imagines himself as a mayor, walking down the street in a Western town, wearing a cowboy hat and firing a rifle, in a parody of the opening credit of the Western show  starring.
 * After they receive the gold from the river, Kent Brockman does an editorial about it and thanks Homer, saying that they will all be covered in (a sexual term for peeing on your partner). He does not get it but the people off to the side laugh hysterically.
 * Krusty mentioned that he opened for The Who at.
 * While waiting for 's concert in Olde Springfield, Principal Skinner seems to be dressed in . Edna Krabappel is dressed as a typical.
 * Homer asks The Who to play songs.
 * Homer sings the song "Pac-Man Fever" by.
 * The last part of the final scene - where the badgers descend upon Springfield - shows one badger, much smaller than the rest, some distance behind the others. This is probably a reference to several similar Looney Tunes cartoons starring, in which he is originally terrorized by a group of mice, but subsequently develops enough courage to "show them who's boss" and drive them all away. In each of these cartoons, the mice are shown fleeing the house, screaming and squeaking in fear, followed a little later by a baby mouse chattering incoherently in a voice that has been recorded at high speed.

The Who references

 * When Kent Brockman's newscast shows a picture of Homer and friends on the steps of a home, the layout and poses match the back cover of The Who's .
 * At the moment when Homer is introduced to The Who, the band is heard playing the closing chords of what appears to be "The Seeker". They later play the song in New Springfield.
 * Homer mentions the songs "", "" and "".
 * Moe's line "That fat, dumb, and bald guy sure plays some real hard ball" is a variation of a lyric in the song "" by The Who. The original lyric is "That deaf, dumb, and blind kid sure plays a mean pinball".
 * The drummer who plays with The Who in this episode is clearly a cartoon version of.
 * When The Who orders Homer to tear down the wall, the moment is quite similar to movie  by, in which the main character is ordered to tear down the wall in his head, that alienates him from the world.
 * The song played right before the end credits is "Won't Get Fooled Again" and not Homer's request of "".

Trivia

 * After Homer hears about the change of area code, the badger shows up and Homer goes "Go away! We got bigger problems now." This is a reference to the recurring sudden plot changes in most Simpson episodes.
 * This is the 250th episode of the show.
 * is actually assigned to suburbs of ; although this seems to reveal Springfield's State, the real  is in .  is one of two codes used in Puerto Rico.
 * This is the only episode of the Simpsons directed by Shaun Cashman.
 * When Lisa is trying to find out what badgers eat she goes on whatbadgerseat.com. A real version of the site (whose logo is reminiscent of ask.com) was made by the producers of the show.
 * The Simpsons' telephone number is given as 939-555-0113. The old area coded number of 636-555-0113 appears to connect to Mr. Burns; however, in "Lisa's Date with Density", his phone number was 555-0001.
 * The phone number for the exterminators is 983-7668 (X-TERM-N-8).
 * This is the last appearance of the Simpson family lawyer, Lionel Hutz. Since season 9 he has not spoken due to the death of his voice actor, Phil Hartman. This is his last appearance in the whole series.
 * A deleted scene on the season 12 DVD shows that when Marge says that it's a little chilly, the singer replies "Shut the f*** up, Marge" before smacking her with the microphone. This scene was cut because of the profanity. Even if it was aired, it would have been bleeped out for the FCC. In T.V. airings, his line is dubbed to "Get out of the way, Marge."

Continuity

 * The "angel skeleton" from "Lisa the Skeptic" can be seen in the wall dividing the cities.
 * The Simpsons Comics story Wall or Nothing featured a similar plotline in which Springfield is divided over the issue of use and access to a lake.
 * This is the first time Homer has had his body opened and his organs shown working. The second time was in "Treehouse of Horror XII" where the back of his skull was removed and his brain shown.

Goofs

 * from KBBL has black hair rather than his usual blue-grey hair.
 * Both Skinner and Apu are seen in Olde Springfield, despite them having been shown before as belonging to the middle class.
 * In the scene seen on the right, there appears to be two Kirk Van Houtens, one pushing the catapult, one in the crowd near it.