Visible crew/equipment: On the roof of the building, Magnum shuts the door of TC's chopper saying "What are you gonna do? Land on him with your helicopter?" Inside the door's reflection, there's the filming crew. (00:40:50)
Magnum, P.I. (1980)
1 visible crew/equipment mistake in ...By Its Cover - chronological order
Starring: Tom Selleck, Roger E. Mosley, John Hillerman, Larry Manetti
Revealing mistake: One of the party guests opens the door of the fridge and you can see behind the set instead of looking into the fridge. (00:32:40)
More quotes from Magnum, P.I.
Trivia: Tom Selleck is the only actor to appear in every episode of the show.