My Double-Crossing Master is the twenty-third episode of Season 3 of I Dream of Jeannie, and the 84th overall episode of the series. Written by Mark Rowane and directed by Hal Cooper, it first aired 5 March 1968 on NBC.
Summary[]
Tony bets Roger that Jeannie won't dump him for someone else and dresses up as a British Doctor. He is unaware that Jeannie knows it's Tony all the time.