Bewitched (1964)

Season 2: Episode 30

Darrin is sure to get the Robbins Baby Food account, but Mr. Robbins wants his home life checked out. His assistant, George Barkley, wants to check out a little bit more of Darrin's life so he hires sneaky, sly Charlie Leach to spy on him. Samantha uses her magic one day and Abner's sister, Harriet Kravitz (who conveniently takes care of the house while Gladys is away), catches her and tells Charlie all about it. He doesn't believe it at first, but he catches Sam using her powers. He tells Samantha either she tells him what he wants to jknow or he will tell the entire world that she is a witch.....