Don't Eat the Snow in Hawaii: Part 2 - S1-E2
Continuity mistake: When Magnum is in the airport lobby, extras are recycled continuously; look at the old man with a black and white pattern shirt, sometimes carrying a bag and sometimes with a woman in blue; he walks in the opposite direction than Magnum's in the first shot, reappears with a long delay and coming from the wrong side, then he is behind Magnum as he pushes aside the two Swedish stewardesses, then he's ahead of him, etc.
Don't Eat the Snow in Hawaii: Part 2 - S1-E2
Continuity mistake: When the bad guy dies, his head against the bathroom counter casts a completely different shadow between the two main angles the scene is shot under.
Don't Eat the Snow in Hawaii: Part 2 - S1-E2
Continuity mistake: The bad guy dies with his shirt flipped up, baring his beer belly. TC approaches him, and now he is conveniently more covered.
Don't Eat the Snow in Hawaii: Part 2 - S1-E2
Audio problem: Rick sprays the hitman with bullets, and hits the car behind him. The car is not Robin's Ferrari, but regardless of that, the car alarm of the Ferrari stops the moment that black car is hit. (01:25:25)
Don't Eat the Snow in Hawaii: Part 2 - S1-E2
Revealing mistake: When Magnum passes his gun to his fellow soldier, it cuts to a shot of the heli in the air that is mirrored - easy to spot by "Marines" written backwards.