Continuity mistake: When Aunt Clara is in the kitchen with Tabitha, when Tabitha knocks off her plate then the unicorn, there is nothing on her high chair tray. When Tabitha twitches the pot and spoon over, there's suddenly a Graham Cracker on her tray where the spoon lands.
Revealing mistake: When Aunt Clara "parachutes" in the background is not the neighborhood background shown throughout series with Kravitz across the street...and no pine forest. It's obvious a stage background.
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.
raywest ★