I Dream of Jeannie - Season 4 - Eps 14: The Case of My Vanishing Master (2)
Roger manages to arrive in time not only to stop the wedding, but he manages to convince Jeannie that the Tony she was about to manage was an impostor. Later, Tony comes home and is subjected to torture from Jeannie, who thinks that he is the impostor. Tony eventually convinces her that he is the real one and as he is about to go tell the impostor that the assignment is over when he finds out that the phony Tony is working as a double agent for a foreign power. Doctor Bellows and Roger then arrive and have a hard time trying to decide which one is the real Tony, until Jeannie causes the impostor's false teeth to fall out.
About I Dream of Jeannie

Title: I Dream of Jeannie
First Air Date: 1965-09-18
Last Air Date: 1970-05-26
Status: Ended
Rating: 7.829/10 (from 786 votes)
Language: EN
Seasons: 6
Total Episodes: 139
Network: NBC
Genres: Sci-Fi & Fantasy, Comedy, Family
Production Companies: Sidney Sheldon Productions, Screen Gems Television
Synopsis
While on a mission, American astronaut Captain Tony Nelson is forced to make an emergency landing that will forever change his life. On a deserted South Pacific island, Captain Nelson happens upon a bottle containing a beautiful two-thousand-year-old female genie named Jeannie. Rescuing her from the bottle nets Tony the requisite three wishes, and then some, when Jeannie pledges total devotion to her new "master".
Cast

Barbara Eden
Jeannie

Larry Hagman
Tony Nelson

Bill Daily
Roger Harley

Hayden Rorke
Alfred Bellows