Double, Double, Toil and Trouble - S4-E4
Continuity mistake: When Samantha returns home from a church bazaar, she sets her purse on a small cabinet by the doorway. When she greets Darrin in the living room, the purse is dangling from her left arm.

Starring: Agnes Moorehead, Dick York, David White, Elizabeth Montgomery
Double, Double, Toil and Trouble - S4-E4
Continuity mistake: When Samantha returns home from a church bazaar, she sets her purse on a small cabinet by the doorway. When she greets Darrin in the living room, the purse is dangling from her left arm.
Darrin Stephens: Sam, don't expect your mother to be gracious. She doesn't do imitations.
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)
Question: Is there some reason why Samantha wears the same exact "Heart Pendant Necklace" in every single episode? It seems odd that she only has one necklace all the time.
Answer: The original diamond and white gold heart necklace was given to Elizabeth Montgomery by her then real-life husband, William Asher, who also directed the show. She wore it in nearly every early episode. When the necklace was lost or stolen about mid-way through the series, Montgomery had two replicas made from rhinestones. She wore either one of those for the rest of the show's run.
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