As Jonathan and Jennifer are walking with the hotel manager, he mentions that they will have the honeymoon suite. Jennifer says, "After four years, do we qualify?' The episode aired in 1979, which would put their wedding in 1974-1975. But in 1981 (two years later), season three, episode 6, Jonathan and Jennifer are celebrating five years of marriage, and would have them getting married in 1976.
In the poker game with Tommy Lasorda at the beginning of the episode, Jonathan antes with a red chip instead of a white chip. But apparently without any time-cut, the pot later shows only white and blue chips in the pot.
As Jennifer, Stefanie Powers keeps her fingernails rather short. Every time there's a close-up of her hands, the fingernails are over an inch long.
Jonathan refers to Monte Carlo as the South of France. Monte Carlo is in the Principality of Monaco an independent city state.
Takes place in France, the characters are "in the South of France". During a food fight, the alleged French chef in the kitchen exclaims: "No, not the Beef Wellington". There is no such thing as beef Wellington found in 1979 France. It is a British dish that is unknown in France.
Jennifer is wearing a body stocking in the tub scene.