When CBG starts his story saying it takes them "back to the creation of Middle-Earth, as told in the Ainulindale, and Valaquenta. Behold Melkor, proudest of the Ainu" this is a reference to "The Silmarillion" by J.R.R. Tolkien, wherein is described the creation and early ages of Middle Earth (seen as an alternative creation-myth for our world) where later the events of "The Hobbit" and "The Lord of the Rings" took part. However, CBG incorrectly uses the singular form "Ainu," when he should have used the plural term "Ainur."
Principal Skinner, Otto, Groundskeeper Willie and Lunchlady Doris are not taking part in the teacher brawl after Mike insults Bart and the other fourth graders.
In various rebroadcasts of this episode, the "Mothers Making Out" scene has been completely cut out.
The New York Jets are referenced in this episode as Bart references the movie where the Jets battle the Sharks, which begins with the Shark in a fighter plane, but it falls out of the sky and lands during a Jets football game, where the Jets players attack and tear apart the shark.
Bart's scar only exists in this episode.
Jeffery Albertson mentions that Bart and his friends were still in diapers when they got the scars. However, they are all wearing underpants in one of the flashbacks.
When Willie shows the boys his belly button, he is as fat as he looks when he has his shirt on. However in episodes before and since he has extremely ripped abs.