Here Comes Mr. Perfect - S4-E18
Continuity mistake: When Jared is talking to the whole school about shunning him, his undershirt changes from white to blue to white again.
Continuity mistake: When Menlo tells the crew about Randall's joke book, he loosens his tie, and it's still loose when he says "Indeed." But half-a-second later, as he walks away, his tie is back to normal.
Here Comes Mr. Perfect - S4-E18
Continuity mistake: When Gus is reading his paper to the class at the start, Phil is sitting behind Spinelli. Three shots later, his skin, pants, and shoes have all changed colour. His skin colour is proper again in his next appearance, but he is now sitting behind Jared. Two shots later, his shirt has changed from blue to black. His shirt colour is proper again in his next appearance, but his tie is now the wrong colour, and his shoes have changed colour again. Two shots later, his tie is coloured properly again.
Here Comes Mr. Perfect - S4-E18
Continuity mistake: When Jared enters the classroom and introduces himself, he leaves the door open behind him, but two shots later, it is closed.
Continuity mistake: On the day of the PTA Spring Fling, Principal Prickly wonders where Mikey is, and when Miss Finster says, "We've looked everywhere, sir," she wears her watch on her left wrist and her bracelet on her right wrist. In the next shot, the bracelet on her right wrist has been replaced with her watch. In the following shot, the watch has vanished from her wrist.
Continuity mistake: When Antonio proposes to Miss Salamone, he puts the ring on her middle finger, but in the next shot, it is on her index finger.
Continuity mistake: When the Diggers lift the treasure out of the hole, the handles on the sides of it are yellow. Then, when the kids start fighting over the treasure, the handles change to gray; then they are yellow again after Gretchen finishes reading the note.
Continuity mistake: After the scene of Vince and Spinelli talking in front of the bathroom doors, it cuts to kids leaving the school, and the doors are left open after they all leave. Two shots later, they are suddenly closed. Doorknobs also appear on the doors, which weren't there before.
Continuity mistake: After the scene of Vince and Spinelli talking in front of the bathroom doors, it cuts to kids leaving the school, and Gretchen has her backpack on. In the next shot, it vanishes.
Continuity mistake: When T.J. runs out of the school with the history book, the book is red, but it changes to blue in the next shot, then back to red.
Continuity mistake: When Miss Grotke gives T.J. an old copy of the history book, there are two kids sitting in the desks behind T.J., but they vanish two shots later.
Continuity mistake: At the start, the books that Miss Grotke gives to the class are red, but they all change to blue in the next shot.
Continuity mistake: When Gretchen's mother first sees Gretchen doing homework, the paper in front of Gretchen has three lines on it. In the next shot, there is only one line on it; then the paper is completely blank in the following shot. Then, when Gretchen falls asleep on her desk, the paper has three lines on it again, and Gretchen's pencil has disappeared from her hand.
Continuity mistake: When Spinelli arrives at school at the end, she holds her purse in her hand, but it disappears two shots later. It reappears when the gang starts to play tag.
Continuity mistake: When Spinelli and Pat Patterson sit on the bus bench, the text on the bench that says "Just Buy It" has a period at the end, but the period is missing in all the following shots.
Continuity mistake: When Pat Patterson tells Spinelli that they should have a seat on the bus bench, the bench is missing the word "Gumoflex" and the black gum logo that it had in a previous shot. They both reappear when Spinelli and Pat sit on the bench.
Continuity mistake: When Gus is hiding behind the trees at school, no one is standing behind the fence, but in the next shot, the gang suddenly appears behind it.
Continuity mistake: When the gang sees Gus standing next to the tree, T.J. has his backpack on, but when the cops arrive, his backpack vanishes. The straps also change from grey to blue.
Bonky Fever - S4-E30
Continuity mistake: When the gang arrives at Mikey's house with his birthday gifts, Gus wears a red bow tie. Then, when the gang walks up to the door, Gus's bow tie has changed to the same color as his shirt, then goes back to red in the next shot.
