Other mistake: Throughout the sixth season Eddie Orlofsky attends school with Porter Scavo, and Danny Bolen, witch means they must be close in age. However, in season 6 episode 20, it is revealed that Eddie was in high school the same time as Danielle. This does not make sense due to the fact that while Danielle was in high school, Porter and Preston were about 10.
The Peruvian Puff Pepper - S3-E2
Other mistake: Drake and Josh find the monitor in Megan's room. After they reveal the normal wall and the family leaves, Megan hits the button behind the picture to show the monitors. However, when Drake and Josh find out that Megan entered the salsa competition, they storm into her room, but the button is still revealed in the background.
Other mistake: When Sportacus jumps out of his blimp, his crystal is missing.
Dirty Pranking Number 2 - S1-E6
Other mistake: Season 1 Episode 6: "Dirty Pranking Number 2". When the pizza delivery man shows up at the police station, the receptionist says that they hadn't ordered twenty pizzas; but the pizza man is holding only eighteen boxes.
Other mistake: Twelve seconds into the intro, the shot of the store with the name Adrian Grenier above it is mirrored. Notice the reversed lettering in the signs. (00:00:10)
Suggested correction: Does something in the intro count as a mistake? Even still, the signs could be facing the inside of the store on purpose, making it look like a reverse image from the outside. Just to the right of the store with Adrian Grenier's name on it, we see a sign for Pizza displayed correctly.
I would say, for this type of intro, it should be considered a mistake. I'd call it an "other mistake" as it wasn't done deliberately. There's no way the reversed imaged signs point into the store. The photo store has a solid sign that's not inward facing, with the word "Kodak" flipped. The neon signs facing outwards are also flipped. And the pizza signs are also incorrect. The p and z's are flipped as well.
You're absolutely correct, I do see the reverse print on the photo store. Oddly enough, one of the pizza signs is displayed correctly, however.
Sick Days & Spelling Bee - S1-E6
Other mistake: Vincent Martella plays a bit part as "Scoop", a newspaper photographer. His name is misspelled in the end credits as "Vincent Matella."
Buzz Driver - S5-E7
Other mistake: There is no need for there to be two lists of those who should and shouldn't drive the bus, only a list of those qualified to drive the bus.
Other mistake: As Denny asks "did she sleep in your room?" Alan leaves Denny's hotel room, pulling the door behind him. The swinging door catch is in the closed position, sticking out from the door frame which would prevent the door from being able to shut - the shot cuts a fraction before impact and we hear the sound of the door closing anyway.