Other mistake: When Viper slides the swords to Jackie and they come to a rest next to him, there is a small paper spider right beside Jackie. The only paper spider in the room, however, is Origami himself, and he is actually too far away at that moment and too big to fit the bill. Guess some of the animators got their depth perception messed up.
Other mistake: When Uther takes Excaliber from Merlin while preparing for his duel with the black knight, we see that Uther is left handed. And he is left handed while writing. He tests the balance of the sword with his left hand, and in fact wears his sword on his right hip in all other episodes. Once he puts his helmet on and begins his duel with the black knight he suddenly becomes right handed.
Other mistake: In the scene where the Glee Club is discussing that Violet will win them the contest, Violet leaves as she is upset about Screech. Zack then comments about "No one having a voice like Violet's". If you look at Mr. Tuttle, he mouths the words that Zack says.
Other mistake: During the 3-nightmare sequences, there are 25 students, with all desks full. However, 1 desk should have been left open as Kevin appears in the dreams, meaning there should only be 24 students.
Did the Earth Move For You? - S2-E1
Other mistake: Viv and Phil are waiting in his office for the power to come back on after the earthquake, but you can see lights on in the building across the street. (00:16:30)
Other mistake: Hannah Montana and Kyle (Lucas Cruikshank) are recording voices for an animated cartoon. The studio door is left open.
Other mistake: At the end of this episode when Jonathan and Nicky set off on horseback to the canal to board the tug boat "Heartsease" they leave late at night and arrive the next day. But in episodes 7 and 8 Margaret rides on horseback to Heartsease and home again, and the journey only takes a few minutes.
Other mistake: When Roger writes the note after Kel glues his mouth shut, Kenan reads back far more than Roger could realistically have written in the short amount of time he took to write it.
Other mistake: When the throne in episode 5 & 6 is first introduced it is a normal throne or chair; it doesn't move when merely touched. But once the ceremony starts and after it's finished, it's suddenly a swivel chair. The base is never shown of course. But a swivel chair made of solid rock...?
Other mistake: Fred's shadow isn't shown in the opening credits.
Suggested correction: Be more specific. What part of the opening credits?
When their shadows are black and going across the screen from right to left.
Other mistake: Whenever you see the gates to the yard during the show they are painted green and have a "Wright and Boston scrap metal merchants" sign written on them. But right at the front of the opening titles of every episode, the gates are plain green with no sign-writing on them.
Gopherville - S1-E1
Other mistake: In "Sock Safari", when Toopy finds a red thread, his left hand with his glove disappears instantly.
Other mistake: When everyone is mounting Lefty after escaping the temple, part of the lava flow directly on the right of the opening goes nowhere and just ends halfway down the screen.
The Retainer - S1-E2
Other mistake: The gas chamber is destroyed when the dogs pull a chain that's attached to its front support but it somehow collapses from behind. (00:19:07)
Other mistake: We know the girls all go to school together, but when they are walking home in the opening scene, they all meet up coming from different directions.
Suggested correction: They don't approach from very different directions. All of them are still basically in the same area of lawn and trees. This is possible depending on what they do after exiting the school building. Maybe someone walked in another direction so they could briefly talk to other friends, etc.
Other mistake: Preacher has a large bold tattoo at the center of his chest below his neck that changes repeatedly. For example, it's dark and clear when they capture the deputy, but it's smudged and partially gone when Preacher forces Stella, the deputy, and Ralph into the 18-wheeler. (00:29:10 - 00:36:50)
Other mistake: Carmine throws the gun on the couch and it goes off. The bullet hits in the opposite direction the gun is pointing.
Art Class & Lost and Found - S3-E5
Other mistake: Ned paints a rather obscene painting and brings it up to his teacher. He had just painted the painting and his teacher gets angry at the school cutting the art budget, so Ned holds the painting against his chest. When he takes it off his chest, there is no paint on his chest and the painting had no chance to dry before he put it on his chest.
Other mistake: As Fester goes to shoot Gomez, his aim strays upward to about a 45 to 50° angle. Not enough to shoot the support chain on the light that is directly above him, and hits him on the head.
If I Had the Wings of a Bugaloo - S1-E5
Other mistake: Joy's feet are stuck in Benita's glue trap, but she steps backwards twice before Harmony and Courage pull her out.