- Genius Bonus: "Vitamin R," which "malk" proudly claims it is full of, is a slang name for Ritalin.
- Hilarious in Hindsight:
- Bart discovers that for years, he's actually been drinking "Malk" instead of milk. Malk now actually exists. It's almond milk.
- A gag about Springfield Elementary carrying books banned by other schools includes, among other books, Dr. Seuss's Hop on Pop. While nothing more than a throwaway Arson, Murder, and Jaywalking joke when written, there was actually an (unsuccessful) attempt to ban it from the Toronto Public Library in real life years later.
- Edna and Skinner hate each other's guts in this episode, which is amusing considering the two hooked up only two seasons later (and, sadly, would break up again after that).
- The Civil War reenactment park raises its prices after being bought out by a cooperation called "Dizz-Nee." 20+ years later, Fox, the company which owns The Simpsons, was bought out by Disney.
- The end where Springfield Elementary merges with the state penitentiary was used later as a plot point on the The Amazing World of Gumball episode "The Cage".
- Memetic Mutation:
- Spawning a meme? That's a paddlin'...
- Purple monkey dishwasher.
- "Is that gum? Is that gum? Is that gum?"
- Moral Event Horizon: The reenactment soldiers cross the line by chasing after a whole classroom with the intent of murder for "trying to learn for free", ending in them clubbing Uter when he can't catch up to the school bus. And Skinner crosses this line (at least in the eyes of some) by showing no concern for Uter's fate, just admitting that permission slips will keep the boy's parents from suing him (with a later episode implying that Skinner's lack of concern for Uter stems from xenophobianote ).
- Unintentionally Unsympathetic: The Confederates at the battle of Fort Springfield. Oh sure, getting slaughtered while trying to surrender is pretty vile, but their side started the war for the specific purpose of maintaining and expanding slavery.
- Woolseyism: In the Italian dub, the unnamed Soap Within a Show Jimbo watches with his mother is turned into The Bold and the Beautiful.
YMMV / The Simpsons S6E21 "The PTA Disbands"