The Return of the Fellowship of the Ring to the Two Towers - S6-E13
Continuity mistake: When Randy and Sharon go to Butters' house to obtain the video, they are in pyjamas. The next shot in his basement they are in casual clothes.
Other mistake: Butters tries to get a "seamen sample", and is on it for two days straight. The mistake: You can see Butters' head in the school classroom, while he's still supposed to be in Cartman's bathroom. (00:15:30)
Continuity mistake: When Kenny approaches his mum with a plunger, she asks, "What are you doing Kenny?" and she is wearing a "I'm with Stupid" t-shirt, but when Kenny tries to plunge her, the phrase "God Bless America" can be seen visible on her T-Shirt.
Simpsons Already Did It - S6-E7
Character mistake: Butters says that he watched "all 132 episodes" of the Simpsons; at the time this episode aired, 291 episodes of the Simpsons had been produced and aired.
Pilot: The Spirit of Christmas (Jesus vs. Santa) - S1-E1
Revealing mistake: Each time Jesus turns his head to speak to the children when he is beating Santa Claus, he has two left arms.
Are You There God, It's Me Jesus - S3-E16
Factual error: In the episode where Cartman thinks he has had his period, a news report says it was merely a viral infection, simple antibiotics will cure it. Antibiotics are only used on bacteria and have no effect on viruses.
Other mistake: When the boys cause a mini tremor by blowing up the girls' base, the time at which it occurs is strange because when they do it, both Stan's parents are at home (even though they both have jobs), Ms. Choksondik and Mr. Mackey are at Choksondik's house getting it on (indicating that school is over) and the other teachers are still at the school.
Cartman Gets an Anal Probe - S1-E2
Audio problem: After the scene where Mr. Garrison says, "You can say that again, Mr. Hat," Kyle shouts, "Give me back my brother you stupid aliens" in Stan's voice.
Other mistake: Whenever Chef has his pointer finger up, if you see his hand, he has 5 fingers, but when he opens them all the way, he only has four.
Erection Day - S9-E7
Audio problem: Officer Barbrady's voice and accent sound completely different from how he has sounded in the past.
Cartman Gets an Anal Probe - S1-E2
Revealing mistake: When Cartman finishes talking about his nightmare in the beginning, Chef comes and you can see his hat poking out of the roof of the car. They couldn't really fix this because this episode was done out of construction paper. (00:04:10)
Revealing mistake: When Jimbo asks the children if they want beer, the campfire stays still for two shots.
The Red Badge of Gayness (a.k.a. War) - S3-E14
Continuity mistake: In the episode with the new civil war, when Clinton unrolls the scroll, it goes from rolling horizontally to rolling vertically between shots.
Continuity mistake: In the "Krazy Kripples" episode in Season 7, Jimmy's last name is given as Swanson. In "Up the Down Steroid" in Season 8, it's changed to Jimmy Vulmer.
Continuity mistake: When Eric comes running over to talk to the other 3 boys about the handicapped competition, their toy trucks are quite far apart from each other, but when it cuts from Cartman and then back to the boys, Kyle's truck has moved all the way in front of Stan's truck.
Revealing mistake: Mr. Mackey's glasses do not have the part that goes over his nose unless he is looking sideways, then it suddenly appears. (00:17:40)
Continuity mistake: When Ned, Jimbo and Kenny are out on the fishing boat they have a rocket attached to a rack. After firing the rocket the rack still remains, but in the next shot when they head for shore the rack is gone.
Suggested correction: Butters is always shown as being a bit dim and slow. As a kid it's easy for him to make a mistake in thinking that there was only 132 episodes.
Ssiscool ★
That's why it's called a "character mistake"; also, Butters is certainly naive, but he's hardly what I would call "dim and slow."
zendaddy621