- Harsher in Hindsight: Kent Brockman made a suggestion while covering the Spinal Tap riot that Springfield should ban all music, since apparently even classical has caused riots in the 1700s. Nearly 30 years later, the lead family in Coco has this ban, though not because of riots.
- Hilarious in Hindsight: One of the T-shirts sold at the concert is Spinal Tap kicking Mohammar Gidaffi in the butt. Years later, having his ass kicked (by his own people, not a rock band) is how Gidaffi died.
- Informed Wrongness: Otto's trying to make out that Homer is being a jerkass for calling him a "sponge", considering that everything seen in the episode — namely Otto repaying the Simpsons' hospitality by attempting his driving test once, failing miserably, and then doing nothing but mooching off the Simpsons (a family that already has three children, with only one of the adults working) while generally making a nuisance of himself — indicates that this accusation is 100% deserved. At worst, Homer's perhaps a little hypocritical considering that he himself is indicated to be as much of a nuisance to Marge as Otto is, but his assessment of Otto's personality doesn't seem very far off the mark.
- Memetic Mutation: And a pre-internet one at that. Even for the British and Australians, Bart's use of "Slag off!" was recent; slag in British slang essentially means "loose person who will do anyone". For those in the States, slag refers to cast off waste from steel refinement, but it's vernacular sounds pretty Brit English enough to pass off as a PG rated insult, and so a new way of saying "get lost" was born.
- What an Idiot!:
- Yes, Otto, go ahead and insult your drivers license teacher by asking her if she's a post-op transsexual.
- Also, it makes perfect sense to tell an eight-year-old girl a scary story at night about a maniac killer and then tell her that you were the killer. How else do you think she would react? And how would her father react if he found out?
YMMV / The Simpsons S 3 E 22 The Otto Show