Visible crew/equipment: After Magnum deliberately makes a threat against the reporter on the beach, when it cuts to the estate Magnum walks over to Rick who's talking about the union guy, and the white T-mark is visible on the grass where Magnum had been standing. (00:18:45)
Revealing mistake: Magnum confronts on the beach the slimy journalist and he 'threatens' him. He then turns around to leave. Close-up on Reporter Eric Daniels and after a second you can see in the left corner of the screen a tiny bit of Magnum's maroon hawaiian shirt pop in view. He never left. (00:18:50)
Visible crew/equipment: While Karen is packing up her car Dr. Jorgenson walks over to talk to her, and he begins by saying that he had spoken to her friend. Just as Karen says, "Thomas," in this shot we can spot something covered with black cloth and tape, presumably the boom mic, hovering low between them. (00:25:50)
Continuity mistake: To get to the pool area, Magnum slides a door open to the left (of the screen). When he finds the body floating in the water, the underwater camera shows the background, and the door opens towards the right. (00:39:20)
Continuity mistake: Poolside, Magnum asks Daniels "Why change now?" His notepad suddenly switches side going from the left hand to the right. (00:39:55)
Revealing mistake: During the flight towards Karen's location at the end of the episode, TC's chopper suddenly has emergency floats equipped on the skids in the shots when it flies over the coast. (00:43:00)
Deliberate mistake: During the episode, whenever daily newspapers are shown, they lack any indication of the date.
Other mistake: The clock in the millionaire's limo has all hands (including the second hand) perfectly still. (00:02:00)
Continuity mistake: Mr. MacLeish is in his plane, and before taking off he presses Play on the cassette player. He is holding it in a different way (fingers on opposite sides of the tape lid) between shots. (00:03:40)
Revealing mistake: When the plane is blowing dust all over the lawyer and the money-conscious nephew, you can see the face of the extra piloting the plane instead of Donnelly Rhodes. (00:03:50)
Visible crew/equipment: When in the opening credits the names of the special guest stars Donnelly Rhodes and Elaine Joyce appear, on the side of the Pitts Special you can see the reflection of the set lights. (00:03:50)
Continuity mistake: During the scene when Higgins comically 'abuses' Magnum and his sax skills, the shadow of the instrument on Magnum's chest changes position depending on the angle of the camera. Moreover, when Higgins mentions he came "on two accounts", Magnum tilts the sax back two times in two separate movements. (00:05:50)
Continuity mistake: The first time we see the blonde cousin, she is holding in her arms the picture of dear departed. Cut to a view of the room, and her right hand is at the top of the frame, completely different position from before. (00:08:00)
Continuity mistake: After a breathtaking rendition of "Silent Night", Marina sits down. Next to her Simon is on the couch, who stretches his left arm placing it along the back of the couch, and the right arm goes on the armrest. Yet in the next shot he has both hands in his lap. (00:08:45)
Audio problem: The lawyer and Magnum join the others in the room for the reading (rather, play) of the will. One of the prospect heirs says "It's about time then", but their lips are not moving and the muffled and unnatural ambience makes it even further clear that it is dubbed in. (00:08:55)
Revealing mistake: Magnum takes an ancient gun from the cabinet and stumbles upon one of the eccentric millionaire's practical jokes. The joke though is an impossible one; the string that supposedly triggers it is not there, and when the gun goes off, Magnum is not holding the gun in a way that would pull it. (00:16:25)
Character mistake: Carlton's favourite gun is a Colt "Bisley Model", rare and produced starting 1894. When he introduced it to Magnum in the cabinet he called it a "Colt 45, vintage 1860" (or sixty-something, as Magnum started his line when he might have not finished). (00:16:50)
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)
Visible crew/equipment: When Magnum leaves the guesthouse, he tells TC and Rick that all he wants to do is, "Have a little drinkipoo and watch some telly." Then it cuts to Magnum inserting Wilson's tape, and there are multiple black T-marks visible on the floor, all around the room. (00:22:45)
Continuity mistake: Magnum gives Marina the glass of scotch. When she nervously laughs saying "We all did", she is holding her glass with one hand; in the same shot, the other hand joins, but in the reverse shot it's not there, and back there as it returns to the previous angle. Moreover, the forefinger is at different heights in the separate shots, as shown by the level of scotch. (00:26:15)
