Revealing mistake: When Andi walks into the library (this is not Andi's dream) it cuts to the librarian sitting at her desk and we can see the shot is flipped - note the bookcase and the librarian's buttons. (00:10:40)
Continuity mistake: When Marshall first finds Trip's letter, he holds it from the left side. In the close-up, he's holding it from the right side. (00:02:10)
Speeding Is Dangerous - S1-E22
Other mistake: When Shine says, "I think I'm OK," his front tire is layered over the railway tracks.
Max's Bath - S1-E4
Continuity mistake: When Max finishes his shower, his toy duck and bath robe are on the heater, but when Ruby looks at her dirty dress, they have vanished. A door also appears behind Ruby, which was never there previously in the episode.
The Darkest Hour: Part Two - S4-E2
Revealing mistake: At the very beginning of the episode, as the knights are about to send Merlin to Camelot with Lancelot, the knights walk towards the camera. As they do, there's a patch of green screen the special effects department must have forgotten to remove between Sir Elyan and Sir Percival. (00:02:10)
Burple Nurples/Shnitzel Makes a Deposit - S1-E2
Continuity mistake: In "Burple Nurples", Chowder is showing Gorgonzola the Burple Nurples, and there are houses and shops not too far behind Gorgonzola. Later, the camera zooms out, and the buildings are missing.
It's Only Rock and Roll - S3-E11
Visible crew/equipment: After Ralph walks into his house with Bill and Dak, when Bill explains to Pam that Dak will be spending the night, the T-mark is visible on the floor in front of Bill. (00:31:05)
Continuity mistake: In the beginning, Carly gets a bowl and fills it with popcorn up to about 2/3 full. The camera cuts to Sam, then back to Carly, and the bowl is barely full. The camera goes back to Sam then to Carly again, and the bowl is 2/3 full again. Freddie walks in, and the bowl is barely full again, which Carly now fills with popcorn.
Safety First/Crime Sheen Investigation - S1-E12
Other mistake: During Crime Scene Investigation, Jimmy explains his costume to Carl and, while saying "Sherlock Holmes", his chin goes into his jacket. (00:14:38)
Visit to a Hostile Planet - S3-E2
Continuity mistake: When the guy shoots the Robinson Robot it leaves a big bullet hole on the front. In the next shot we see the Robinson Robot turning around and the bullet hole is gone.
Continuity mistake: Lilo and Stitch catch Clip at the Birds of Paradise Hotel sign. Clip goes around behind the sign, and then Lilo and Stitch get on the front side of the sign and jump around to catch Clip. As they are walking away, suddenly Captain Gantu is hiding behind the front side of the sign crouched down and stands up once they leave. He just appears there, and as big as he is there's absolutely no way he snuck up and crouched behind the sign without being seen by the camera. He just materializes there. (00:03:35)
Continuity mistake: In Alex's government class, the professor wrote "Free Speech" on the chalkboard. In a few of the following shots the handwriting differs, and in some shots the phrase is underlined, but in other shots, it is not underlined. (00:05:00)
Buttercrush / Fuzzy Logic - S1-E4
Continuity mistake: When Buttercup punches a hole in the wall to see her sisters are being lowered into lava, the hole's initially quite small. In the next shot, the hole is noticeably bigger.
What Price Gloria? - October 16, 1961 - S2-E4
Continuity mistake: When Sam goes out of the window to save Gloria, part of the ledge breaks off, but in the near shots it is broken off almost to the corner near Gloria, while in the shots from below most of the ledge is still intact. (00:35:45)
First Kiss - S1-E17
Visible crew/equipment: At the end of the episode when Harvey hops away, a boom mic is visible. (00:21:55)
Visible crew/equipment: At the very end of the episode, the top of the set and crew lights are visible on the top on the screen.