Replaceable You/References

==Cultural references==
*The title is a parody of the song composed by and written by . The song is titled .
*The Itchy & Scratchy cartoon shown at the beginning of the episode is a parody of Frankenstein.
*Santa's Little Helper wears a Darth Vader mask, causing Homer to bow down and call him "Lord Vader."
*Bender from Futurama appears on the cover of an issue of Popular Robotics, a robotics-themed magazine seen on Bart's desk.
*C-3PO appears on the cover of Robot Fancy, an other robotics-themed magazine.
*Optimus Prime is mentioned on the same cover.
*A troll doll is seen on Ralph's desk.
*The "Sit in there, baby" poster is a parody of the infamous "Hang in there, Baby" posters, which were also parodied in The Twisted World of Marge Simpson.
*Slinky Dog from the Toy Story franchise is seen on Bart's desk.
*The robotic arm seen on Bart's desk resembles that of The Terminator. 
*The film Homer and Barney was watching, Paul Flart: Water Park Cop, is a reference to the comedy film Paul Blart: Mall Cop.
*One of the items seen on Bart's desk is a DVD of The Six Million Dollar Man, which is a reference to the real-life television show with the same name.
*Mr. Burns says "What the deuce?" in a similar fashion to Stewie Griffin from Family Guy.
==Trivia==
*It has been revealed that Mrs. Glick's first name is Alice.
*Moe pours a horse laxative into Lenny's beer.
*The chalkboard gag is a reference to the fact that the Treehouse of Horror episodes usually air sometime in early November.
*The robot Bart and Martin invented is actually a real product http://www.parorobots.com/. Based on the academic papers publication date from the website, it can be concluded that the Simpsons episode was inspired by this research project.
==Continuity==
*Bart previously won an SES science fair in Duffless and Treehouse of Horror VII. Unlike these episodes, he didn't steal anything from Lisa's science project.
==Goofs==
*Agnes mentioned that she carried Seymour around in her womb, but Skinner is Armin Tamzarian, not Agnes' son. Maybe she was dismissing the real Skinner. However, it may not be considered a goof as the episode Boy Meets Curl reconnected Seymour's origin again back to his pre-1997 origin.
*In the scene where Homer shows Roz the coffee room, his tie is pink, and not green and blue like in the previous scene. His tie also switches colors from pink to green and blue throughout the first half of the episode.
*Homer was demoted for bunking off at work, but that isn't grounds for demotion, it is grounds for dismissal.
== Citations ==
Category:Trivia
Category:Goofs
Category:Cultural references