In no particular order:
- In the last Treehouse Of Horror, a direct spoof of ACO with Moe as the Malcolm McDowell character
- In a much earlier T Of H, Bart was wearing a costume of the Malcolm McDowell character, but it wasn’t a plot point of any type that I can recall
- The episode where the dog (Santa’s Little Helper) runs away, he’s brainwashed ACO style into become one of Burn’s hounds
- This one was subtle, and I didn’t catch it until reading about later. There was an episode where Lisa brainwashes Bart against cupcakes, and the scene where he tries to grab some but freaks out is a spoof of a similar ACO scene where the Malcolm McDowell character tried to grab boobs but has the same reaction.
Any others ?