All Roads Lead to Floyd - S1-E13
Revealing mistake: While Magnum is a passenger in Floyd's car, in the closeups of both of them with Floyd at the steering wheel, there is black cloth over the door beside Floyd (presumably covering the device that secures the side camera to the door), which does not exist in wide shots.
All Roads Lead to Floyd - S1-E13
Revealing mistake: During the credits, look at the car when Andy Romano's name pops in view; the antenna and the steering wheel are on the right of the vehicle. In the rest of the episode, they are on the correct side (the left). (00:01:40)
All Roads Lead to Floyd - S1-E13
Revealing mistake: The sequence with Floyd making a couple calls at the payphone presents a rather unusual mistake. Noah Beery Jr. looks away before he's done dialing the phone number...and he misses. His finger pushes on the chrome of the keypad missing the actual "1" key, but the scene just goes on and he dialed the right number anyway. (00:09:55)
All Roads Lead to Floyd - S1-E13
Revealing mistake: When Bull pushes Magnum against a shelf during the final fight, the stuntman with a thin stage 'stache is seen. (00:44:50)
All Roads Lead to Floyd - S1-E13
Revealing mistake: After the shootout at the Ponzi scheme party, Floyd drives his prehistoric Honda in traffic with Magnum at his side. "Magnum" does not have his moustache - it's just some big guy in a Hawaiian shirt they put there as body double without even a fake stache. (00:25:00)
All Roads Lead to Floyd - S1-E13
Revealing mistake: Magnum tries to persuade TC that he can invite anybody over anytime; at the same time, we should be persuaded that the extras who look nothing like Tom Selleck and Roger E. Moisley and whose lips are not moving are the actual Magnum and TC having a conversation. (00:06:00)