Tabitha invites her friend Lisa over, and she gives both of them polka dots to make them look like sisters. It's up to Samantha to fix it before Lisa's parents arrive. From Bewitched Season 7, Episode 13 'Sisters At Heart' - When Tabitha wants to be sisters with her black friend Lisa, she casts a spell and they both end up polka-dotted. Through another misunderstanding Darrin's client wants him off the account because he thinks that Lisa is his daughter. More Of Bewitched Here: https://AAN.SonyP