Other mistake: Samantha is reading a 4-line note from Endora. The paper is semi-transparent and in a shot from the front, we can easily see the writing through the paper. However, after the note is "twitched" into a second, shorter note, there's another shot from the front - and the lettering looks exactly the same as it did before. (00:16:40)
Bewitched (1964)
1 other mistake in Instant Courtesy
Starring: Agnes Moorehead, Dick York, David White, Elizabeth Montgomery
Santa Comes to Visit and Stays and Stays - S6-E14
Plot hole: Mrs. Kravitz, while standing in the Stephenses' front doorway, sees Santa Claus and assumes that it's Darrin in costume. However, the very next shot shows Santa exiting the kitchen (around the corner from the front door) and starting up the hallway toward the living room. There is no possible way Mrs. Kravitz could have seen him when she said she did. (00:09:30)
Samantha: Try to control your temper. Remember, "Peace on earth, goodwill to men" includes witches.
Mirror, Mirror on the Wall - S5-E6
Trivia: The angry driver behind Darrin who yells "Let's go, Gorgeous!" is producer William Asher who was married to Elizabeth Montgomery at the time. (00:04:30)
I'd Rather Twitch Than Fight - S3-E10
Question: Darren was angry at Samantha for getting rid of his favorite coat so, why was he even angrier when he got it back?
Answer: I haven't seen the episode, but generally in the show, Darrin was always suspicious that Samantha always used some kind of witchcraft for any situation (even if she didn't). He probably figured the same thing with the coat while in her possession.
You should watch the episodes in question before giving an answer so you know what you're talking about.
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