There's No Witch Like an Old Witch - S1-E27
Visible crew/equipment: As Samantha helps Aunt Clara out of the closet, as Samantha says, "Don't go 'way!" the boom mike's shadow becomes momentarily visible at the top of the screen. (00:02:00)
Open the Door Witchcraft - S1-E28
Deliberate mistake: Sam and Darrin are "trapped" in the garage; however, you can see a side door.
Visible crew/equipment: When Abner comes over to the Stephens' near the end to say Gladys' problem has got worse, just as the door is closing a crew member's hand can be seen near the Bob ensuring it closes. This is just before the shot goes to Darrin.
Continuity mistake: When Darrin steps outside for the morning paper, neighbor Dora O' Riley is working on the lettering of her mailbox. Darrin gets locked out of his house. He goes to a window, turns back to Dora and says "I got locked out". The lettering on the mailbox is completely different. (00:00:48 - 00:01:27)
Continuity mistake: Louise and Larry have been married 10 years. When Louise gets pregnant in Season 1 ep 12 she says she has been married for 14 years. So this would be their 16th anniversary.
Continuity mistake: The shaving cream smears on the mirror are different in the close-ups than they are on the wider shots. (00:04:25)
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