Did You See the Sun Rise? - S3-E1
Revealing mistake: TC's arrival is announced by the loud sound of his helicopter, which makes Higgins' desk comically shake. Fun sight gag, but looks totally phony, since everything in the room, including the plants, is completely still. (00:09:00)
Did You See the Sun Rise? - S3-E1
Continuity mistake: When Magnum is in the middle of his deductive process, Higgins indulges him answering that hardly anyone manufactures the gunpowder he needs anymore because of the low flashpoint. There's a cut in the middle of the sentence; the matches lined up in front of the chopping board are positioned differently on the right end, the one he places the newest victim at. (00:08:20)
Did You See the Sun Rise? - S3-E1
Continuity mistake: Magnum walks up to Higgins as he is beheading the matches. In the first shot he put just his hand on the desk, in close-up he is leaning all the way with his elbow. (00:07:20)
Continuity mistake: In the finale, the wet stain on Mr. MacLeish's body changes between the close-up and the wider angle. (00:47:15)
Continuity mistake: When a subservient TC grabs Magnum's suitcase, the torn-up gas bills move from his left hand to his right between shots. (00:22:15)
Continuity mistake: When Cora stands up saying "I don't have to listen to this", the blinds at the window Phil Lewis is standing close to are half open (that is, the top half open, the bottom half of the window obscured). In the rest of the scene the blinds are fully open. (00:37:55)
The Eighth Part of the Village - S3-E3
Continuity mistake: When the girls come out of the crate, the lid of the crate rests on top of it, sticking out by quite a bit, and parallel. During the fight, when Selleck is replaced by a stunt double, the lid sticks out by a small corner. Earlier when he was trying to talk his way out of it and let the girl go, the shadow of the lid also varied in size depending on the camera angle. (00:10:20)
Almost Home - S3-E10
Continuity mistake: In a remarkable coincidence, the Admiral Magnum needs to talk to happens to be chilling at his place about to get a mouthful of Higgins' buns. When he answers Magnum "Probably too much" after the vigorous shake, his left hand is behind the seat of the Ferrari, but it's on the car door in the shot that follows. (00:22:15)
Continuity mistake: During the car chase, Magnum is wearing a large wristband, which appears also in the close-ups of the gears being shifted. It's nowhere to be seen in the side views of Tom Selleck in the car, though. (00:21:40)
Past Tense - S3-E4
Revealing mistake: TC kicks the boss villain in the face as he tries to climb back the hill; the kick misses by a mile. (00:24:00)
Revealing mistake: When Agatha and the other "ladies of the Sandwich Island Botanical Society" show up near the chopper, aside from TC's perfect reaction toward Higgie Baby, in this shot (and a following shot) the wood box and wedges are visible under the chopper, as they are there to be the stable step up for Agatha, when she enters the chopper from the other side. (00:45:00)
Continuity mistake: Higgins arrives at the dingy motel and walks past some broad in green. He approaches the counter, and there are bathroom doors on the left wall. The men's room has a "Out of order (Do NOT use) " sign. Said sign is hanging on the right side of the door, but just from camera angle; during his chat with the filthy porter the sign is on the left side of the door. (00:21:15)
Revealing mistake: As everyone marches towards the happy ending of the episode, the Higgins lookalike that walks by Magnum at the airport looks in fact nothing like Higgins. (00:41:50)
Two Birds of a Feather - S3-E19
Revealing mistake: The plane is supposed to be completely out of fuel and simply gliding when it passes over Magnum's head, but you can see its propeller is spinning. (00:09:15)
The Arrow That Is Not Aimed - S3-E13
Character mistake: At the end of the episode, Magnum says "You know what they say about samurai swords - you unsheathe 'em, you gotta draw blood!", but throughout the episode, Tozan drew his sword on Magnum and the villain and no blood has been drawn - in case of Magnum, there was no intention of it either.
The Arrow That Is Not Aimed - S3-E13
Continuity mistake: Magnum dives fully clothed to save Gallagher, the Tourist Shop Owner. Obviously he's soaking wet after that. Later at home, Magnum is sitting at the desk in the study wearing the same polo and jeans, bone dry. (00:35:00 - 00:36:10)
The Arrow That Is Not Aimed - S3-E13
Other mistake: Magnum mispronounces the word 'seppuku' calling it it 'seppuki', prompting Higgins to correct him. He plays the role of the usual Westerner who is unfamiliar with the word and concept. But in the previous season, in 2-9, "The Taking of Dick McWilliams", not only he already had to deal with the prospect of ritual suicide, but he spontaneously mentioned the word himself ("Seppuku? You're willing to let your daughter kill herself?") with the other person simply mentioning a vague 'honorable thing to do'.
Continuity mistake: Magnum walks back to the car after spending 4 hours at the archives. A woman with a brown dress with a red belt crosses his path and walks away. Magnum then stands in front of the parkometer (and the parking tickets), but the woman is just then passing him by. (00:23:00)
Audio problem: Magnum slips into the car in 1936 with his client out of the club. If you pay attention to the audio, there is sometimes a droning noise as if someone were using a leaf blower nearby (it's actually because in editing they cut out all sounds below a certain level - but some of it spiked enough to stay into the audible range). (00:11:20)
