When Homer is on his way to the electric chair, the music in the background is from the movie's soundtrack.
The prisoner who asks Homer to "Give me your hands, boss" and then threatens to kill him is a parody of John Coffey (played by the late Michael Clarke Duncan).
Chief Wiggum sheds a tear after Homer is strapped into the electric chair, as does prison guard Dean Stanton at John Coffey's execution.
The music is played again (briefly) just before the closing credits roll.
The TV show Frame Up may be a reference to, and parody of, hidden camera prank reality shows, like Candid Camera and Punk'd.
Homer is convicted of buggery. While meant to sound like a crime against insects, it is actually a British term for male homosexual intercourse, which, in Britain, was considered a crime.(and is still a crime in some states Homosexuality was considered a mental illness in the US until 1968 and every state in the US had laws against homosexuality at some point not all of them have been changed to this day)
Homer reads to the screampillar and ends with "Once upon a time there were three little bears. The End."
At the end of the episode, Bart claims he ate so much shrimp, but in "Please Homer, Don't Hammer 'Em," Skinner finds out that Bart has a shrimp allergy.