Continuity mistake: When Cory first confronts Shawn over kissing Topanga in their dorm room, Shawn is looking through his drawer for a shirt. The shot goes to Cory for a second, then when it goes back to Shawn he's had time to find a shirt and put it on - the shot wasn't off him for nearly enough time to do that.
Continuity mistake: Just after Cory talks about being a "baby shower machine", Morgan walks past him. There's then a quick shot of Alan and then we see Cory again, and again Morgan walks past him. It's not the same shot from two different angles, as Cory is acting differently each time.
Audio problem: When the waitresses are performing their song, you can tell they are lip syncing to a recording even though they are supposed to be giving a live performance. The vocals have a noticeable amount of reverb and are mixed evenly with the instrumental track despite the fact they aren't even using microphones. (00:06:49 - 00:09:00)
Continuity mistake: The picture Rachel takes of Shawn, Jack and Chet is not consistent with the framed picture Jack receives. When Rachel takes the picture, Shawn's necklace is sticking out of his shirt collar slightly and positioned to the right and he has a lock of hair draped over his forehead on the left side of his face. In the framed picture, his necklace is protruding from his collar more prominently and positioned to the left, he has no lock of hair over his forehead, and his left hand can suddenly be seen on Chet's left shoulder. Additionally, the framed picture shows Chet with his head slightly tilted back and showing his teeth as he smiles, but when the picture was taken, his head was level and he only had a slight grin with no teeth showing. (00:04:49 - 00:21:10)
Continuity mistake: When Shawn and Angela are talking in the student union building, Shawn's scarf is draped around his neck in an asymmetrical fashion, with the left side shorter than the right. When they sit down on the couch, he pulls the two sides to a symmetrical length. Throughout the rest of the time Shawn remains seated on the couch, the two sides alternate between being symmetrical and asymmetrical. (00:15:20 - 00:16:47)
Audio problem: When Eric walks into Cory's hearing to the theme of "The People's Court," we find out the sound is coming from a tape player in his briefcase. When he opens up the briefcase and pulls out the tape player to stop it, the volume remains the same. The volume should have increased once he opened the briefcase. (00:14:30)
Continuity mistake: When Eric and Jack place the red tablecloth on their counter, it barely drapes over the end of the counter that is facing the camera and completely covers the side that is on the viewer's left. A couple of shots later, the tablecloth is draped over the same end of the counter down to the floor, and the left side is now exposed. (00:05:06)