Continuity mistake: When TJ announces that there will be no gum sharing, it shows Gretchen in the classroom. There is a kid sitting behind her. However, this is the same kid who is caught running in the hall, who Ms. Lemon says is a sixth grader. The gang is in fourth grade.
Continuity mistake: When the gang is eating lunch, there is a girl in a pink shirt and some other people at the table behind them. When it cuts to behind Prickley and TJ, the kids at that table are different.
Continuity mistake: After T.J. has become principle for a day, it shows him chewing out a kid for running in the halls. He throws down a manilla folder onto his desk in anger. However, when the shot changes, the folder has disappeared.
Continuity mistake: When Randall and TJ are walking across the playground, Randall's hair has turned black and so has TJ's hat.
Character mistake: When Mikey looks at the Picture Day schedule, he points out that 4th grade is going last. However, the schedule says they are after 3rd grade and before 5th grade, actually making them fifth. The faculty is actually listed last on the schedule.
Continuity mistake: Near the end, Gus is standing between the two handball walls. He is looking back at TJ and Lawson, who are near the first wall. But as the camera pans out, TJ and Lawson have moved to the other handball wall.
Audio problem: When Tubby is about to win the race, Mikey shouts "Run Tubby run" in Spinelli's voice.
Suggested correction: Not really. It definitely sounds like Spinelli due to how he screams the line, but it's not Spinelli's voice. Something similar happens a moment earlier in the episode, when Mikey screams, "Win, win, win!" His voice gets a bit raspy, similar to Spinelli's raspy voice, but those aren't the same voices. Also, I don't know why they would have Pamela Adlon (Spinelli's voice actor) record that one line for Mikey anyway.
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.
The Shiner - S3-E9
Factual error: In the beginning, right before the class is noticing TJ's shiner, Ms. Grotke says, "Abraham Lincoln, the 16th President..." which is true, but on the poster behind her, it says "Abraham Lincoln, 14th President."
Suggested correction: Incorrect. The poster correctly reads, "Abraham Lincoln, 16th President."
That Stinking Feeling - S3-E11
Factual error: When Lawson catches the ball in the end-zone, you realize he's NOT in the end-zone.
Other mistake: When the gang enters the Ashley's Clubhouse and catches the Ashleys and Randall taking the treasure, Ashley B's skirt is incorrectly coloured green. A second later, it is yellow again as it should be.
Continuity mistake: When The Library Kid speaks for the first time, you see a shot of the gang, T.J's hat and hair colour are mixed up.
Continuity mistake: When Library Kid sees her kindergarten class, she's wearing a dress, but when she runs into the library, she's wearing a T-shirt and skirt.
Continuity mistake: The Library Kid says her classmates were savages. This is all well and good, except the kindergartners shown are the present day kindergartners.
Continuity mistake: When TJ's friends climb on the jungle gym to try and take TJ's place, we see that Gretchen is the last one up and there is no-one on the bars behind her. But in the next long shot, Mikey is right behind her. Then when it shows a close-up of them, Mikey is gone again; then he reappears a moment later.
Plot hole: Why did Mikey jump to make the feathers fly if Vince said to abort? When TJ gets hit by the feathers, he's on the 'X marks the spot.' But when he got honeyed, he was nowhere near it. Before TJ gets feathered, He gets up onto his feet, like he had fallen down. But he was still standing when Mikey fired the feathers.
Continuity mistake: In the time before King Bob tells his story about being the Prankster Prince, no one is on the jungle gym except TJ and his friends. But after Bob finishes, around 20 kids are on the jungle gym, plus TJ and co. There was not enough time for ALL those kids to get on top of the jungle gym from the time King Bob started his story to the time he finished.
Plot hole: Hustler kid tells Gus in this episode that hustlers never deal in things that could get a kid in trouble. In the episode where all the kids need to become Ashley's he has no problem in handing out plenty of fake IDs, and at the beginning of every show he is shown displaying dodgy merchandise to a kid inside his jacket.(the kid isn't inside the jacket...the merchandise is...).
The Spy Who Came In from the Playground - S4-E4
Other mistake: When the gang is showing stone their way into the school they go through a vent and all of them manage to squeeze through the small hole in the wall.
The Spy Who Came In from the Playground - S4-E4
Continuity mistake: After the part where Mikey gets double portions, the school clock shows it is half past one, but a couple of shots later shows the clock at half past ten, what kind of clock does that?
