This ep marks the first appearance of Ralph Wiggum.
Couch Gag: Repeat of the couch gag from "Itchy & Scratchy & Marge" where The Simpsons run in and the couch is gone.
Actor Dustin Hoffman provided the voice of Mr. Bergstrom, but was credited under the name "Sam Etic".
(Bart shows the whole classroom the tape for his project called, "How Kittens Are Born: The Ugly Truth")
Bart: …and here comes Snowball II. This is the one we kept.
Bart: We were gonna keep the gray one, but the mother ate her.
Martin: Mrs. Krabappel, he's traumatizing the children!
Mrs. Krabappel: As usual, I agree with you, Martin. Bart, shut that off and take your seat immediately!
Bart: Oh, look! This is really cool. When I hit reverse, I can make 'em go back in.
(The whole classroom screams)
Homer: Oh, oh, Marge, I'd love to, but I was planning on... (thinks to himself) Sleeping? Eating a big sandwich? Watching TV? Spending time with the boy! (speaks up) Spending time with the boy! The boy needs attention, Marge.
Marge: Homer, I've been talking to Lisa, and I'm concerned about your relationship with her.
Bart: Me too, Mom. I think you're drifting apart.
Homer: Shut up, boy.
Marge: Homer, please.
Homer: Marge, you don't understand. I can't do it because... (thinking to himself) You're trapped. If you were smarter, you might think of something. But you're not, so you just might as well... (speaks up) All right, all right, I'll take her.
Homer: What do you mean by "suggested donation"?
Clerk: Pay any amount you wish, sir.
Homer: And uh, what if I wish to pay... zero?
Clerk: That is up to you.
Homer: Ooh, so it's up to me, is it?
Homer: I see. And you think that people are going to pay you $4.50 even though they don't have to? Just out of the goodness of their... (laughs) Well, anything you say! Good luck, lady, you're gonna need it!
Ralph: What's Lyme Disease?
Principal Skinner: I'll field that one. Lyme disease is spread by small parasites called ticks. When a diseased tick attaches itself to you, it begins sucking your blood. Malignant spirochetes infect your bloodstream, eventually spreading to your spinal fluid and on into the brain.
Miss Hoover: The Brain? Oh dear god!
A Streetcar Named Desire
Lisa yelling at the window outside of Mr. Bergstrom's apartment is a reference to the 1951 Marlon Brando film.
Dewey vs. Truman Presidential Election
When Martin is elected class president, he poses for the school newspaper with a headline that says "Simpson Defeats Prince." This is a parody of the Chicago Daily Tribune's mistaken 1948 headline predicting Thomas E. Dewey would defeat the incumbent Harry S. Truman. Truman held up the headline at one of his press conferences for the New York Times to print and the picture became famous.