Samantha's Thanksgiving to Remember - S4-E12
Continuity mistake: When Darrin is at the table with Phineas and John Alden the turkey changes positions. The legs are pointed towards Phineas then in side shot turns away then back.
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)
Samantha's Thanksgiving to Remember - S4-E12
Continuity mistake: When Clara arrives and Samantha zaps her clothes on, Clara's hands and arms change positions between various shots.
Samantha's Thanksgiving to Remember - S4-E12
Continuity mistake: At the trial, the gavel changed positions between shots, you can see it moving forward and back in relation to the book. Also, the quill appears to change.
Samantha's Thanksgiving to Remember - S4-E12
Factual error: I noticed a grandfather clock when they all arrived in Plymouth (in the right corner). I won't assume this is the first Thanksgiving since the colony is built up and seems established. Plymouth was from 1620-1690s. I had to research but apparently there would not have been an ornate grandfather clock available. The first clocks were built around the time but were not common - especially in an American colony like Plymouth struggling to survive.
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