Don't Eat the Snow in Hawaii - S1-E1
Continuity mistake: When Magnum drops the ring out of the envelope, nothing is near it as it's shaking. In the close up shot, it's next to keys. (00:44:20)
Continuity mistake: The opening of the show starts with Magnum driving off with the iconic Ferrari; however it has a license plate number, 56E-478, which is not the one seen in 99% of the show. It comes from the pilot episode, where the vanity plate ROBIN-1 had yet to be introduced.
Continuity mistake: Magnum comes back to the beach after some surf ski, where the prince struck a 'deal' with Ed Russler. Magnum's shirt is wet in two completely, and that's not a understatement, COMPLETELY different ways before and after John Saxon approaches. (00:28:30)
Continuity mistake: Rick tells (and shows!) Magnum that he's writing "a recipe for Veal Marsala for my mother back in Chicago." But the key plot element of 4-4 "Distant Relative" was that Rick raised his sister by himself, because Chicago was "a tough town to grow up in without any parents."
Continuity mistake: For the first episodes (minus the plot), the opening of the series features the Ferrari with two different license plates. The opening shot shows the ROBIN-1 vanity plate that is in every episode but not in the most well known version of the opening (with the iconic Mike Post theme music used in all the other seasons), and the following shows the license plate from the pilot.
The Ugliest Dog in Hawaii - S1-E8
Continuity mistake: Inside his study when he talks with Magnum explaining the radiographs to him, Higgins is wearing trousers. Interrupted by the intercom, Higgins then goes outside with the intent to shoo off TC and the "juvenile delinquents", but does so wearing shorts. (00:12:40 - 00:14:20)
Continuity mistake: Magnum and TC are talking at the beginning of the episode, by Rick and his peachy polo. Magnum has always his hands on his hips in TC's close-ups and in front of his belly in the wider angle shots. (00:02:15)
Continuity mistake: Magnum and TC hi-5 at the beginning of the episode. The football bounces at distance from TC in the first shot, but it's right at his feet after their hands clapped. (00:02:00)
Continuity mistake: Magnum is bullied into going with Carol's lame plan. The very first shot of him and TC on the Ferrari on their way to block the drug lord shows TC wearing a white sweatband on his head he does not have in the rest of the episode; it's recycled from 1-13, All Roads Lead to Floyd, and you can even spot the car typical of that episode. (00:29:10)
Continuity mistake: Magnum begins to open the safe; the sensor with the red wire is in left position, black wire in right position. When he removes the sensors, it's the other way around. (00:23:00)
Continuity mistake: Drunk Carol is telling Magnum why she was fired. As she says "They took it away from me", her hand is in front of Magnum's, and yet it is on top of it at the cut. (00:06:00)
The Case of the Red-Faced Thespian - S4-E12
Continuity mistake: Magnum puts the register on the armchair while Higgins is looking at the invitations. He pulls away, but in the next shot he's still hunched over the armchair. (00:36:40)
The Case of the Red-Faced Thespian - S4-E12
Continuity mistake: Higgins, back in his wits, walks into the studio while Magnum is brainstorming with TC and Rick. He spots the invitations and examines them; as he approaches them you can see they are spread out in a fan, while at the beginning of the scene they were stacked in a neat pile. (00:36:15)
The Case of the Red-Faced Thespian - S4-E12
Continuity mistake: When Valerie says "You can't keep me here!" sitting on the armchair, her shadow is in a completely different spot of the seat compared to the wider angle. (00:34:50)
The Case of the Red-Faced Thespian - S4-E12
Continuity mistake: Magnum asks Valerie Kane to show him her legs. Much to the viewer's enjoyment, she does; she also does it putting her right arm parallel to the edge of the desk, but in the following shot it's just like in the one before, across the desk, on the papers. (00:32:50)
The Case of the Red-Faced Thespian - S4-E12
Continuity mistake: Sir Fearing Pangborn announces the "encore selection" with a hand on the sheet/tunic, but he had that hand low in the previous shot. (00:31:50)
The Case of the Red-Faced Thespian - S4-E12
Continuity mistake: In the midst of the 'murder investigation', Magnum decides to just chill and watch a movie. He sits on the couch reciting the lines off the top of his head and with a falsetto. Notice that at the left edge of the frame there's a book popping in, roughly positioned between two pillows. You see the book again in the reaction overhead shot when TC calls Magnum to help out of the predicament Higgins is in, but it's more to the left. (00:30:25)
The Case of the Red-Faced Thespian - S4-E12
Continuity mistake: Lady Cynthia Warrington-Stout gets up with Rick after the swim. She has her towel and shoes in her left hand, which becomes the right when Archer Hayes is spying on them. (00:21:00)
The Case of the Red-Faced Thespian - S4-E12
Continuity mistake: Inez Stuart signs up the program for TC; a program that is rolled up, opened, closed, rolled up again. (00:17:40)
The Case of the Red-Faced Thespian - S4-E12
Continuity mistake: The close-up of Robin's door with the "WRITING" sign on the handle features a shadow completely different from the one Magnum's body casts in the previous and following shot. (00:09:45)
