Cheap, Cheap - S4-E5
Visible crew/equipment: There's a reflection of a man in a white shirt and jeans visible in the toaster between Darrin and Samantha. (00:23:00)
Allergic to Macedonian Dodo Birds - S4-E11
Visible crew/equipment: When Samantha and Aunt Clara are on the roof of the house, the shadow of what appears to be someone's arm appears against the "sky" backdrop on the left side. (00:23:00)
Samantha's Thanksgiving to Remember - S4-E12
Visible crew/equipment: While Sam is defending Darrin during the trial, just as she mentions their absurd belief that if someone speaks differently it's a sign of witchery, the white chalk T-mark is visible on the floor under the desk, where Phineas is sitting. It was not there in previous shots. (00:19:25)
Visible crew/equipment: Right after Samantha, Darrin and Tabitha pop out of the living room, the shadow of what looks like a camera rolling backwards can be seen on the floor. (00:21:55)
Answer: Larry had been telling Darrin what it means psychologically that Samantha gave the coat away. Larry said giving it away meant she's happy being married but if she liked the coat it means she desires to be single and carefree. So when Darrin sees the coat, he immediately thinks Samantha doesn't want to be married and the fact that she twitched it means (in his mind) she wants to be a single, carefree witch again.
Bishop73