Revealing mistake: In present day, Magnum is flying with TC to the old house. Selleck and Roger Mosley are talking inside the vehicle about being there before, and TC's shirt is dark red. However in the wide shot of the landing, whoever is piloting the chopper is wearing a yellow shirt. (00:43:40)
Foiled Again - S3-E7
Continuity mistake: Higgins is staring at the window after his dream. Magnum calls for him and casually walks into the study. Something changed in this second part of the scene; the black cap that will be a conversation point later is now placed across the lid and main case of the foil. In the opening view, it was entirely on the lid and wasn't on the frame. (00:03:05)
Foiled Again - S3-E7
Continuity mistake: When the contestants are announced (in a thick French accent), it is said that Higgins fences from the right position. Rick later states, accusing Higgins, that "A lot of people heard Higgins ask for the right side." When the odious rival shows up, he says "You asked for the left position?" to which Higgins nods. (00:11:50 - 00:13:00)
Foiled Again - S3-E7
Continuity mistake: Before the fencing match, Higgins' old belle Velma Troubshaw approaches him and they chat. During this chat the people behind Higgins are different from shot to shot, matching only the views from the same angle. (00:12:20)
Foiled Again - S3-E7
Continuity mistake: Higgins is dressing up for the foil duel. He puts his right glove on when Velma apologizes, and when he replies that she has nothing to apologize for...he's putting the glove on again. (00:12:25)
Foiled Again - S3-E7
Continuity mistake: Magnum visits Assistant District Attorney Carol Baldwin who is having her lunch break outside. She has a paper towel around the yogurt container she's eating from, but when the camera is to her left the napkin reaches the rim of the container, whenever the camera is to her right it's an inch lower. (00:21:45)
Foiled Again - S3-E7
Continuity mistake: After hearing from Magnum about Velma Troubshaw's conversation with the DA, Higgins shows up at her mansion and knocks at the door. The shadows of the foliage (and the shadow of John Hillerman himself) change noticeably at the cut. (00:37:00)
Foiled Again - S3-E7
Continuity mistake: When Magnum confronts the real culprit, in the couple of POV shots they are not wearing the gloves they have in the rest of the fight. (00:43:40)
Foiled Again - S3-E7
Other mistake: The culprit does not have wounds on their hands, but whoever tampered with the box left blood inside it. If the blood is irrelevant to the case and could have been left by Higgins, then it's unclear why it has an effect on the culprit and make them admit their guilt.
Foiled Again - S3-E7
Other mistake: At the beginning of the episode Magnum has some banter with Higgins, but also needs his help with a tie knot he's clueless about, to the point that he can't even pronounce its name and calls it "double Winslow", with Higgins promptly correcting him. And he's completely useless at doing it. However, in the previous season's episode "The Last Page", Magnum was helping Rick with his tie and giving him expert and sensible advice about it and explicitly referencing the Windsor knot, in fact discussing the merits of the half Windsor.
Factual error: The episode opens with a caption "Miami, 1955." However, as Salvatore Marchese sits in the barber's chair, he picks up as his reading of choice a copy of the National Geographic...the April 1982 edition. (00:02:20)
Continuity mistake: The first time we see Mr. White Death in the ring, he gets pushed into the corner by his opponent but he shoulder-tackles him to the ground. So when Rick talks to Harry, makes sense that both wrestlers are rolling on the canvas. Less sense though that after they cut to footage of the two wrestlers trading blow standing, Rick and Harry are still talking with the two big guys downed and tumbling around. (00:04:40)
Continuity mistake: Magnum chirps "Hey, we can talk about this!" as a guy grabs him from behind and Rick is on the ground holding a hand on his cheek. But in the close-up, Larry Manetti's hand is noticeably lower on the jaw. (00:06:20)
Revealing mistake: In the fight at the wrestling match joint, both Magnum and TC's stunt doubles are with their faces in plain view when the beatdown begins and Magnum with his arms blocked kicks the bad guys away. (00:06:25)
Revealing mistake: Mr. White Death intervenes to even the odds as Magnum and TC are getting beaten up. He grabs one guy right away and sends him flying against a wall - but the extra does not fancy headbutting a wall, and even if his character goes KO for the rest of the fight, it's obvious that he connects with the wall with both palms and the head stays inches away from it. (00:06:45)
Continuity mistake: During Earl's story about the dead sumo wrestler, Ernst Borgnine and Tom Selleck's hands have inconsistent positions between cuts. Magnum's hands hold the chopsticks at or well below the table level, and White Death's hand is closed first, then open. (00:09:20)
Continuity mistake: Once Higgins sends away Zeus and Apollo, Magnum looks down briefly at his own feet, which are one in front of the other. A close-up on Higgins happens then, and then another on Magnum, who only then is looking down at his feet and realizing he's standing on the prized soil, and in the following close-up steps away from it, having both feet together at the same level. (00:16:00)
Audio problem: Earl captivates Higgins with the story of his wrestling antics with an old army buddy of his who'd beat him on the ring with his peg leg. Higgins then exclaims something, but John Hillerman's lips move with no sound, only Tom Selleck's voice is heard. (00:17:55)