Bumbling Esmerelda is pressed into service to babysit young Ralph (Ricky Powell), the son of Darrin's new client, Mr. Norton (Richard X. Slattery). In the course of the evening, Esmerelda takes it upon herself to tell Ralph that she's a witch, performing several disastrous acts of witchcraft to prove her point. It is up to Samantha to run damage control by claiming that Esmerelda is really a professional magician. Written by Philip Sharp and Henry Sharp, "Samantha's Magic Sitter" first aired on January 5, 1972. ~ Hal Erickson, Rovi