Continuity mistake: Homer puts his photo on his application, and there is no white spot behind his head in the picture. When the shot changes, there is now a white patch in the photo. (00:06:00)
Continuity mistake: The writing on the entrance essay Lisa is reading changes between shots. (00:05:40)
Continuity mistake: Burns brings out the mystery box and places it on the desk. This box then simply disappears. (00:03:40)
Cape Feare - S5-E2
Continuity mistake: The design of the wall socket in Itchy and Scratchy changes between shots. Note the screws holding the cover. (00:03:40)
Cape Feare - S5-E2
Continuity mistake: At the very start, McBain walks out on stage and there is no gold star on the stage. After he says hello, he walks and stands on a gold star. (00:01:50)
Cape Feare - S5-E2
Continuity mistake: When captured at the end, Bob says, "By Lucifer's beard," and grabs hold of the railings. When the shot changes, he's back to hanging over the railings. (00:20:20)
Cape Feare - S5-E2
Continuity mistake: When Bob is laying in the public street, note the position of Bart's items he dropped. The strap moves, and the position of the apple in relation to the edge of the sidewalk slab changes. (00:16:00)
Cape Feare - S5-E2
Continuity mistake: When the Simpsons arrive at Terror Lake, the car is parked in the middle of the road away from hedges. When Bob is standing on the rake, the car has now moved next to a hedge without being driven. (00:14:50)
Cape Feare - S5-E2
Continuity mistake: When the Simpsons arrive in Terror Lake, Homer has his arms around Bart and Lisa. However, when the shot changes to behind, his hands are on his hips. (00:14:40)
Homer's Barbershop Quartet - S5-E1
Continuity mistake: The display of Homer's control desk changes between the shots of the chicken at the work station. (00:19:20)
Homer's Barbershop Quartet - S5-E1
Continuity mistake: When Homer wipes the dust off the box, there is still some visible dust on the box. When the shot changes, this dust has disappeared. (00:16:40)
Homer's Barbershop Quartet - S5-E1
Continuity mistake: The wording "Be Sharps" changes size on the album when the family is laughing at Bart. It gets much smaller. (00:04:00)
Homer's Barbershop Quartet - S5-E1
Continuity mistake: Skinner puts the helmet on his head and we see Hermann from inside the helmet, and he has no cigarette in his mouth. When we see the shot from outside, he does. (00:03:10)
Tree House of Horror VIII - S9-E4
Continuity mistake: Homer arrives back at home after the blast. He closes the door, and the doorbell rings. He opens it to the mob wanting his skin. He hears his family alive behind him and turns to see them. The door is closed in this angle. The following shot, it's open.
Smoke on the Daughter - S19-E15
Continuity mistake: While Bart is sleeping, there is only one upright shoe on his nightstand. However, just as Homer wakes him up, a second shoe suddenly appears lying on the same nightstand next to the first one. (00:00:33)
Continuity mistake: When Homer wears the "Ralph 08" shirt, the first time the text appears with an apostrophe ("RALPH '08") and in a smaller size; later, in another shot, the apostrophe disappears and the text is shown in a much larger size. This difference is also seen on Bart's shirt. (00:16:21)
We're On the Road to D'ohwhere - S17-E11
Continuity mistake: When Lisa tells Marge that Flanders has only bought his own, and as the zoom pulls back to focus on Flanders, Lisa's mouth abruptly opens in one frame and then shuts very abruptly in the next.
Continuity mistake: When Mr. Bergstrom and Homer are eating together, Mr. Bergstrom's left hand is up and holding a fork, but the next shot shows his left hand resting on the table.
Continuity mistake: The long shot of Homer and Mr. Bergstrom eating lunch together at the childrarium shows Mr. Bergstrom's left hand resting on the table, but the next close-up shot of the duo shows Mr. Bergstrom's left hand up, holding a fork.
Continuity mistake: As Homer speaks with Apu before the robbery, Homer has a fudgesickle in his left hand, but when he turns from Apu to leave, the fudgesickle disappears.
Answer: Willy referred to an encounter he believed he had with actual aliens, while Wiggum thought he was referring to the arcade game.