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 - S1-E1
Factual error: Magnum phones Rick at his Casablanca-like establishment and tells him; "Two guys tried to run me off the Pali Highway. They deep-sixed about a mile past Lanai Lookout." Lanai Lookout is not on the Pali Hwy, it's 15 miles driving south off the east end of the highway, and Magnum was in the Nu'uanu part. (00:40:35)
Don't Eat the Snow in Hawaii - S1-E1
Continuity mistake: After his bitter confrontation with Captain Cooly, Magnum waits for the ensign to head home. Light and timing imply it's sunset, but the scenes at the pier and the car chase happen in broad daylight.
Don't Eat the Snow in Hawaii - S1-E1
Plot hole: The clock at customs signals it is 9:05 AM when Lt. Dan Cook arrives at Hickam. Magnum narrowly misses him. Then he goes back home...and it is night. There is no reason why Magnum would have spent the whole day out of the house, especially never checking on his fraternal buddy he was supposed to chaperone to begin with.
Don't Eat the Snow in Hawaii - S1-E1
Revealing mistake: The bad guys open fire on Magnum during the car chase, and Magnum shifts gears. Is it Magnum though? The hand in close-up not only does not appear to be Selleck's (it appears to have virtually no hair as opposed to Selleck's that can be seen at the beginning setting the cassette player), but is also wearing the team ring upside down compared to how Magnum and everyone does. (00:34:40)
Don't Eat the Snow in Hawaii - S1-E1
Audio problem: Ensign Healy parts from Magnum saying "See you, Magnum", but his lips barely move, not long enough for all the words. (00:31:05)
Don't Eat the Snow in Hawaii - S1-E1
Continuity mistake: Magnum is trying to get information from Ensign Healy. Throughout their conversation (in continuity and without breaks), they are in different parts of the pier at the various cuts. They go from 50 to 37 at the first cut, for instance, or when Healy says to Magnum he's "reaching", they are back at the beginning of the walk as you can tell by the boats. (00:29:30)
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.
Don't Eat the Snow in Hawaii - S1-E1
Continuity mistake: The jazzy opening credits show Magnum driving to meet his friend. However, footage in the city part towards the end show Magnum wearing a flower shirt instead of his blue polo, and earlier (Rober Loggia's credits) the person that steps on the gas is wearing jeans, while the first thing Magnum has to do when he arrives at the base is putting some pants on. (00:07:00)
Don't Eat the Snow in Hawaii - S1-E1
Continuity mistake: Magnum begins the episode coming out of the water. The hair on his forehead is frizzy as he stretches his shoulder with the old war wound. He begins his run, cut to a new shot with his hair now slicked back. When he reminisces about 'Nam later, his hair returns in a frizzy bang, and by the time he's calling Higgins a yo-yo, it is almost dry. (00:00:30)
Don't Eat the Snow in Hawaii - S1-E1
Continuity mistake: Magnum is at the airport waiting for Dan's family to disembark. When the airplane is landing, it has a large red stripe where the passenger windows are. But Alice gets off a plane with no such stripe. (00:18:50)
Don't Eat the Snow in Hawaii - S1-E1
Other mistake: During the Vietnam flashback that Magnum gets when he looks at Lieutenant Dan Cook's ring, there is a shot of the helicopter in between the first two radio calls TC does. In that shot, the footage is obviously flipped, with the writing "MARINES" appearing as "ƧƎИIЯAM" (00:45:00)
Don't Eat the Snow in Hawaii - S1-E1
Revealing mistake: After his car is destroyed, one of the two people who were chasing Magnum emerges from the wreckage and hikes to the very same spot Magnum was in.The road though cleaned itself; no more tracks in the dirt nor the skidmarks from Magnum's abrupt maneuver. (00:36:50)
Don't Eat the Snow in Hawaii - S1-E1
Continuity mistake: When the drunk Alice Cook hugs Magnum at the airport, behind her, slightly out of focus, there's a man in a grey suit with a yellow shirt passing by. She staggers back, and a couple is passing; he wears a brown suit with a light blue shirt. The couple passes by again, same direction and origin point, when she has a giggling fit at "Are you my boyfriend?", and the man with yellow shirt follows just a second after. (00:20:20)
Don't Eat the Snow in Hawaii - S1-E1
Continuity mistake: When Magnum's friend is dying by the fence, he clings to it; in the first shot, his hand is holding clean chainlinks, in the extreme close-up of his hands, his fingers are going through multiple vines entangled with the fence. (00:11:15)
China Doll - S1-E3
Continuity mistake: Magnum feeds a parrot that is turned right in close-ups and turned left in the longshots. (00:30:40)
Character mistake: Higgins at the bar orders "Glencadam on the rocks", but it's been established since the pilot episode that he loathes ice in his drink of choice. (00:23:55)