Continuity mistake: When Mr. Garrison asks Officer Barbrady where he can get the best shot or view of Kathy Lee. Barbrady's pants are black. In the next scene when Barbrady takes the next guy's camera his pants are blue.
Cartman's Mom is a Dirty Slut (1) - S1-E14
Continuity mistake: The video sent in by Stans granddad of Kenny getting hit by the train doesn't match what actually happened.
Other mistake: Both Kyle's and Stan's mothers are identified in this episode as Carol. They later become Sheila and Sharon.
Continuity mistake: When Kyle cuts Kenny in half, we see a skull behind him, but in the other scenes, the skull is to his right.
An Elephant Makes Love to a Pig - S1-E6
Continuity mistake: Kyle has a black eye, but it has magically disappeared by the time he gets home.
Big Gay Al's Big Gay Boat Ride - S1-E5
Continuity mistake: When the boys are playing football, as the shots change, if you look behind the bleachers, sometimes there are mountains and other times there is nothing but sky.
Continuity mistake: After Warsog gives his "statement" to the townspeople, he removes his glasses when telling them to direct their complaints to a nearby wall. Then, as he walks back inside, his glasses are back on his head. (00:15:05)
Continuity mistake: At the end when the airplane hits Kenny, there is a gravestone with a cross on it behind him, but all the time when the other three boys were talking, none of the gravestones behind them had crosses.
Continuity mistake: While Kyle is asleep in his bedroom the Triangle of Zinthar is on the dresser beside the framed photo, but in the next shot when the cut ceiling falls onto the floor the Triangle has vanished, then it reappears on the dresser where it is supposed to be. (00:07:40)
Continuity mistake: During the rehearsal of the play, Kenny's Indian feather is blue. When the tepee crushes him, his feather is now yellow.
Cartman's Mom is a Dirty Slut (1) - S1-E14
Plot hole: Stan's grandad submits the video of Kenny being hit by the train. This gets through into the final, which shocks Stan and Kyle. But shortly the clip would have had to get through to the final by another episode, so shortly Stan and Kyle wouldn't have been so surprised. The video couldn't have been submitted before, as Stans video was submitted first.
An Elephant Makes Love to a Pig - S1-E6
Continuity mistake: Shelly throws Stan on the carpet, but then in the closeup, something blue appears under him. (Despite a deleted scene, this is still a mistake within the show.)
Cartman Gets an Anal Probe - S1-E2
Continuity mistake: The "School Food Is Good Food" poster in the cafeteria changes fonts between shots. (00:10:50)
Continuity mistake: When Stan pukes on to the desk when Miss Ellen says his name at first, it is pink. Then when the camera cuts back to him, it is brown. Then when he pukes the second time and Kyle says "You had waffles for breakfast huh?" it is pink again.
Cartman Gets an Anal Probe - S1-E2
Continuity mistake: When Cartman accidentally sets Fluffy the Cat on fire, it jumps up into the air and knocks over a picture and it falls onto the floor. When Stan, Kyle, Cartman's mom and Wendy walk into the living room in the next shot, the picture has disappeared. (00:17:45)
Continuity mistake: When Wendy finds her report paper, it has "good effort" and her grade written in red marker pen on it, with a short note underneath it also written in red pen. In the next shot the "good effort" and grade number are still on the paper but the note underneath has vanished.
Continuity mistake: When Cartman throws a tantrum and makes his Mum go to the store to get him Weight Gain 4000, he throws his Cheesy Poof's bag to the floor. In the next shot it's in his hand again.
Cartman Gets an Anal Probe - S1-E2
Visible crew/equipment: When Chef is singing: "I'm gonna make love to you, woman!" A crew member's hand can be seen moving the character's head. This was later fixed in the DVD version, but it was not fixed in the original version.
Continuity mistake: When opening presents, the blue mega man disappears instantly. (00:18:20)
Answer: He appears in at least 5 other episodes, but usually just as a background character. He can be seen at Cartman's party in "Immaginationland". He was also one of the kids trying out to replace Butters in the "Professor Chaos" episode.
Bishop73