American History X-cellent - S21-E17
Continuity mistake: When Homer (dressed in a knight's costume) is about to hit a book with his weapon at Mr Burns' place, there is a wine bottle beside him that disappears in the next shot.
American History X-cellent - S21-E17
Continuity mistake: When Homer is showing Carl and Lenny the large bottle of wine he has found in the wine cellar, you can see there is nothing on the shield on the label, but when see Homer holding the bottle a few seconds later, the shield has now two lines on it.
American History X-cellent - S21-E17
Continuity mistake: When Homer is powdering his face at the make-up table at the Independence Day Picnic, you can see the door to the wine cellar is open, but in the next shot it is closed.
American History X-cellent - S21-E17
Continuity mistake: When Mr Burns is being served ribs at the Independence Day Picnic, there is a knife and fork by the side of his plate. In the next shot, both items have disappeared.
American History X-cellent - S21-E17
Continuity mistake: When Mr Burns is doing is speech at the conference, the stand initially has nothing on it but later on a microphone appears from nowhere.
American History X-cellent - S21-E17
Continuity mistake: When we see Homer in the audience at the conference at the beginning of the episode, he is sitting between a lady with grey hair and a man with black hair. But when we see a wide view of the audience a little later on, he is now sitting between a man with brown hair and a bald-headed man.
Continuity mistake: Just before Apu has a flashback of Helen Lovejoy and Moe interacting in the church, Reverend Lovejoy is in his black shirt and collar. after the flashback he is in his casual pink shirt and blue tie.
Continuity mistake: In Apu's van, one of the octuplets on the left is wearing blue pyjamas while the lullaby is playing, then changes to pink pyjamas after Apu takes the disk out.
Revealing mistake: When Homer is riding Barney like a bull at Moe's, there are duplicates of Sam and Larry (the barflies) in the same shot.
Continuity mistake: Just before Apu has a flashback, Reverend Lovejoy is sitting to Apu's left. after the flashback he is sitting to Apu's right.
Continuity mistake: Bob duct tapes Bart's mouth before telling him his story, but the duct tape disappears when the story finishes. (00:12:30 - 00:14:10)
Plot hole: Warren's (as Bob) face falls off and tries to hold it with his hand. When he appears in the next scene, his face is totally sealed with nothing to seal it with. (00:16:25 - 00:17:55)
Audio problem: When Marge says "Now that it's empty, who's going to buy their house? What if someone moves in with two Barts? Or four teenage Barts?" her mouth movements don't match most of her dialogue.
