Continuity mistake: When Osama is video taping his message, Kenny is sitting on the left side chair but when you see the video on the news, Kenny is setting on the far right side next to the goat. The other characters except for the goat change places as well.
Continuity mistake: In the scene where the Cartman family and boys are seated at table, Kenny sits between Kyle and Great-Grandma. But a few shots later Kyle has to hold Great-Grandma's catheter bag, as he is now sitting next to her, and Kenny is no longer between them. However he's back between them again when the camera shows the whole table. (00:04:30)
Continuity mistake: In the episode with the recorder concert. When Cartman and Kenny come into the hotel room, saying that they've found the "brown noise", Cartman is wearing headphones and holding another pair in his hand. Then he suddenly has two extra pairs - he gives one to Kyle and one to Stan (and is still wearing one himself).
Continuity mistake: In the scene where the ATF fires at the group of people coming out of Mr. Mackey's party, they drop dead. A few shots later when the ATF aims the big gun at the door, the bodies and bullet holes in the house are gone. (00:18:40)
Continuity mistake: Just before Cartman sends his kitty out of the window with the photo, there's a photo frame on his desk and a "Cartman" cutout tacked above the desk, and on his bed is his frog toy and his hat. When Cartman walks over to the window with the kitty, all these items have vanished.
Continuity mistake: When the kids are shown in Token's backyard, Kevin is not present. But a few seconds later, when they are each giving their opinions about the 'cursed' video, Kevin suddenly appears on the end of the line.