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.
Hippie, Hippie, Hooray - S4-E21
Continuity mistake: In season 4 episode 10 (That Was No Chick, That Was My Wife) Louise and Larry met Serena when Sam was explaining why she was home and not Chicago. Then in this episode neither Larry nor Louise know about Serena.
I, Darrin, Take This Witch, Samantha - S1-E1
Other mistake: As Darrin tries to catch the moving ashtray, Samantha is smiling at the hilarity and raises a smiling glance at the camera crew. Possibly brought on by their own laughing. (00:09:49)
Character mistake: Samantha calls Darrin's mother "Mother Stephens" throughout episode. In most episodes, she is "Mrs. Stephens." I can't find any other episode where she is "Mother Stephens".
The Good Fairy Strikes Again - S7-E16
Continuity mistake: The tomato juice stains on the Good Fairy's dress alternate between very dark and faded from shot to shot. (00:23:10)
Other mistake: This is a remake of season 1 episode when Paul Lynda makes his first appearance as Harold the driving instructor for Samantha.
Suggested correction: This is trivia at best, but the episode isn't really a remake of an earlier episode. Here Samantha teaches Uncle Arthur (Lynde) to drive and in season 1 Harold (Lynde) taught Samantha to drive. But the same actor playing multiple roles in a series is never a mistake.
Continuity mistake: In "Double Split" Larry says that he gets hives when he plays golf. In following episodes, Larry Tate golfs with Darrin, and feels fine. (00:24:20)
