Frankenstein and the Horny Villagers - S2-E8
Continuity mistake: When Charlie and Berta are in the kitchen talking, Charlie sits down and places his coffee mug on the left side of his plate. A few shots later he is seen placing it again except this time on the right side of the plate. Then just as Berta exits the kitchen, Charlie's mug has now switched sides again, being on the left side of the plate. (00:04:10)
Frankenstein and the Horny Villagers - S2-E8
Revealing mistake: Alan slams his bedroom door shut when Judith has turned up. When he does the wall wobbles. (00:06:50)
Answer: That would be "Corey's Been Dead For an Hour" in season 4, episode 9.
Super Grover ★