Never Again... Never Again - S1-E7
Revealing mistake: While Magnum and Rick are driving to Greenberg's house, as Magnum shouts that they're not meddling, in this shot there's a bar with duct tape (device to secure side camera) over the Ferrari door beside Magnum's left arm, where the camera is located at this particular angle. (00:10:25)
Never Again... Never Again - S1-E7
Revealing mistake: Magnum catches the boat that already sailed away through a great feat, leaping from the pier. The editing trick is fairly obvious; the stuntman's leap is not quite reaching, headed to a platform we can spot at the bottom. But it cuts then to Tom Selleck who with a true airwalking prodigy connects right with the top of the railing, pulling himself aboard. (00:43:25)
Never Again... Never Again - S1-E7
Revealing mistake: The day for night filming is particularly obvious at the entrance fence, and when the two mysterious guys try are kneeling outside of the house wondering how many people they have to deal with, with just 4 shots; you can see perfectly white clouds. It's even worse later in the episode when the Ferrari stops in front of the doctor's house; you can literally see the sun shine reflected by the car and the wet asphalt throughout the whole scene. (00:26:15)