Homer's Barbershop Quartet/References

Trivia and Cultural References

 * Principal Skinner recognizes an old prison helmet of his from Vietnam with the number '24601'; this is the number tattoed on Jean Valjean in Les Misérables, and his only identification. The same number is also Sideshow Bob's prison number in Black Widower.
 * This was David Crosby's second appearance on the show, and the second appearance of a Beatle on the show.
 * The famous Disneyland barbershop quartet, the Dapper Dans, provided the singing voices for the Be Sharps.
 * The record that Comic Book Guy had at the swap meet, "Melvin and the Squirrels" is a spoof of Alvin and the Chipmunks.
 * Apu's new name (de Beaumarchais) is French for 'of the good market', an obscure reference to the Kwik-E-Mart.
 * The Take One couch gag shows The Simpsons running into each other and shattering into pieces; this gag was reused in $pringfield and Lady Bouvier's Lover. The Take Two couch gag shows The Simpsons running into each other again and melding into a blob; this gag was reused in Bart Gets Famous. The Take Three couch gag shows The Simpsons once again colliding; this time they explode. The Take Three gag was reused in Homer the Vigilante and Secrets of a Successful Marriage. In syndication, only the Take One gag is used.
 * The song "Baby on Board" was first heard in Ishtar, the flop 1987 motion picture comedy starring Dustin Hoffman and Warren Beatty.
 * A deleted scene of this episode showed Skinner going back to his mother. She asks him if he was with a woman, he says no, then she asks for a bath, followed by mad laughing and a close-up of their Psycho-parody house. This is the first time Skinner would be involved in a knock-off joke based on the movie Psycho.
 * This is the first episode to be dedicated in memory of someone.
 * This is the second episode to feature three-year-old Bart and baby Lisa in a flashback.
 * In The Simpsons: Hit and Run, one of Apu's 3 costumes is his quartet outfit from this episode.

Goofs

 * After the "replacement Homer" malfunctions, the next scene shows Santa's Little Helper burying him in the yard. Santa's Little Helper did not become the Simpsons' pet until the Christmas special (and first episode), "Simpsons Roasting On An Open Fire". Answer: He could have been a different dog and either killed or ran away before Santa's Little Helper came around.
 * The sign outside the Church in 1985 credits the group as "The Be Sharps" before they even decided on the name.
 * M.C. Hammer appeared at the 1985 Grammys but he didn't get famous until the 1990s.
 * When the group (with Barney) performs at the Statue of Liberty, Chief Wiggum's voice can clearly be heard.
 * Homer refers to Joe Piscopo leaving Saturday Night Live in 1985 when setting the scene for the story, but Piscopo left the show in 1984, before the show underwent a cast overhaul for season 10 (and again in seasons 11 and 12).
 * When Homer sends the kids to bed, from one angle, his phone has no numbers.
 * While Homer says he had five and a half weeks at the top at the end of the episode, only one scene said it was 1985—and the John F. Kennedy airport scene said it was 1986.
 * In the final shot of the episode, Wiggum is drawn off-model, and Lou (the black cop with the Popeye arms) disappears.
 * Homer and Marge's bedroom had photos of Bart and Lisa when they were 10 and 8 years old. However, the story takes place when Bart and Lisa were only three years old and one year old respectively.
 * After finding out Marge was pregnant with Lisa he pulled out all but four hairs, but in this episode Homer was seen with his hair before the second pregnancy.
 * The replacement Homer dummy looks like modern day bald Homer despite Homer having hair back in 1986.
 * Wiggum is supposed to be the B Sharps tenor singer, but when they're singing, you can hear the Dapper Dans tenor and Wiggum in the same song.
 * Homer is fairly accurate about the Statue of Liberty's weight, but way off on height and age. The statue is not 500 feet tall, but only 161 feet from base to torch. Also, the statue is not 200 years old, but the Be Sharps were celebrating the statue's 100th anniversary. A private organization in France intended to commission the statue in 1876 to honor the centennial of the American Revolution, but due to funding issues it was not built and commissioned until 1886.

Beatles References

 * The Be Sharps various performances is reference to the Beatles performances in Hamburg and Liverpool.
 * One of the back cover of their album is reference to the back cover of S'gt. Pepper's Lonely Hearts Club Band.'
 * The performances on Moe's Tavern is reference to The Beatles Performances in the Cavern.
 * Moe's Cavern is similar to the Cavern.
 * The final scene where the Be Sharps sing on top of Moe's Tavern is a parody of an impromptu concert that the Beatles had on top of Apple Corps.
 * Right when the episode blacks out and the credits appear, Homer says: "I'd like to thank you on behalf of the group and I hope we passed the audition.", an actual quote by John Lennon spoken right after they played "Get Back" on the rooftop.
 * The cover of "Bigger Than Jesus", The Be-Sharps second album, features the group walking on water. It is a direct parody of the art on The Beatles album Abbey Road. Unlike the Beatles however, no visible fallout is shown from the "bigger than Jesus" comment, which put the Beatles in rough waters.
 * Meet The Be Sharps album name is similar to the Beatles first U.S album Introducing... The Beatles.
 * There is album cover is similar to the Beatles second England album With The Beatles.
 * Barney's girlfriend is similar to Yoko Ono. Many Beatles fan blame Yoko for breaking up the Beatles.
 * Barney's looks before they break up is similar to how John Lennon looked before the Beatles broke-up.
 * Right after the Be Sharps record "Baby On Board", their manager says "You've just recorded your first number one." This was spoken by Beatles producer George Martin right after the group had recorded "Please Please Me".
 * Wiggum's replacement is reference to George Martin replacing Pete Best with Ringo Starr.
 * After Wiggum was replaced by Barney, an angry mob was shouting "Wiggum forever,Barney never." The same thing happen to the Beatles when they replaced Pete Best with Ringo Starr, the fans said "Pete forever, Ringo never."
 * When Barney plays his song when he says he's taking the quartet to a whole new direction, it starts of with with his with wife saying "number eight" followed by Barney's burp repetitively. This is similar to the start of Revolution 9, where you hear John Lennon say "number nine" repetitively.