Margical History Tour - S15-E11
Continuity mistake: Lisa empties a glass of red wine that she previously poisoned with sleeping potion. When she falls over sound asleep, her glass is shown on the ground next to spilled wine.
Margical History Tour - S15-E11
Continuity mistake: In the Mozart sketch, the music Bart writes with his foot and then picks up suddenly vanishes in the next shot.
Answer: Willy referred to an encounter he believed he had with actual aliens, while Wiggum thought he was referring to the arcade game.