Continuity: In Mackey's office, Cartman goes from getting off his chair, then sitting back on the chair, then he appears back off the chair.

Continuity: In the scene where Cartman is crying for his mother, the tattoo on Romper Stomper's face disappears, then comes back in the next scene.

Continuity: At first the sled race is supposed to be on Saturday, but late in the show it is on announced as happening on Thursday.

Factual error: The news anchor calls Cartman a hate crime suspect, but he had already been convicted, that makes him a hate crime convict.

Continuity: When the boys are heading to see the quintuplets they approach a souvenir stand. In the wide shot all we can see are some CDs on the stand. In the close-up shot there are suddenly prize signs next to the CDs.

Continuity: In the beginning when the boys come in to the living room, Kenny's brother is standing next to him. When it cuts, as Stan's grandpa enters, Kenny's brother is gone.

Continuity: 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.

Audio problem: Just before Kenny explodes from eating all of Mr. Broflovski's antacid tablets, we hear Kyle, Stan and Cartman shout out Kenny's name. One problem - Cartman isn't in the room with them. He isn't even on their debate team.

Continuity: When the two geeks first fight about how many episodes there were for Star Trek the blonde guy says 72 and the other geek says 73, however later when the blonde geek is telling the boys about it, he says there are 73.

Continuity: Pocket carries Pip's luggage away, but a few shots later the luggage suddenly reappears beside them.

Revealing: As Stan and Kenny ask Chef whether Kenny is a prostitute, Kyle's mouth is rotated 90 degrees anti-clockwise.

Audio problem: The animated Christmas movie the boys are making is really "the Spirit of Christmas", the movie Trey Parker and Matt Stone made before South Park. The dialogue recorded by the boys is the same as in the original (with a few changes, but when the film is shown later it's the original speech from "The Spirit of Christmas". You can tell by the way the voices are done, and the tone of the voices.