Continuity mistake: The quantity of super-steroid in Fukegao (the mad scientist) 's test tube changes continuously between shots. (00:11:00)
Die Glocke - S4-E6
Other mistake: When Jones is trying to convince Herr Waesch that she's the owner of the estate where his gala is being held, subtitles of his reply read "I personally procured this home. It's owners were French." The contraction "it's" should be the possessive "its."
The Wedding - S1-E6
Continuity mistake: After speaking with Nate and Robin, Oksana walks behind Robin and ascends the stairs twice.
Factual error: Detective Chief Inspector Kapoor is suddenly shown in uniform with inspector's rank insignia. Detectives never wear uniform (except rarely on formal occasions) and he has apparently dropped a rank.
Factual error: Cynthia comes homes after food shopping. She takes the food (sandwich turkey, mustard, tangerines, paper towels and napkins) out of the shopping bag. She makes Joe a sandwich and uses the new mustard without having to remove the protective seal first. All new mustard squeeze bottles have a protective seal that has to be removed first before use. (00:20:00 - 00:22:00)
Food Fight - S3-E2
Continuity mistake: At the start after Teddy steals Oscar's fries, he eats them, leaving his fork empty. The angle changes and suddenly there are plenty of fries on his fork.