Continuity mistake: The morning after TC and Babs sealed the deal involving him, Magnum goes out for a swim. In the first shot, when he turns around to tell Babs that he's not doing her ridiculous knee to chest routine, the towel around his neck shows no half-squares. In the rest of the scene, the towel is folded so that there's half a square easily recognizable. (00:20:00)
Continuity mistake: Magnum tells Barbara to go to the bathroom leaning against the windshield; his hands is turned in different directions depending on the camera angle. (00:13:30)
Continuity mistake: The scene when Barbara Terranova murders Magnum at billiards is shot with zero regards for continuity, just filming shot after shot even when the balls' positions do not match at all. Just look at the opening shot botched by Magnum; most balls are cluttering the middle of the table, but Babs takes her first shot shocking Magnum on a largely clean green rug. (00:09:30)
Continuity mistake: Magnum and Babs walk away from the phone he greatly amused Higgins with. In the background, the bar clock shows 5 o'clock, when it was 4:31 merely seconds before. (00:08:40)
Continuity mistake: TC tells Magnum "bet you could do it" when Magnum puts down his beer. Next shot and Magnum's hand is suddenly around the beer bottle again. (00:03:05)
Continuity mistake: Magnum is stretching after his morning jog in front of a bottle of Coops that turns between shots. (00:02:35)
Continuity mistake: The titular brunette easily overtakes Magnum during his jog. The sweat patch on his shirt becomes much larger through the span of a brief cutaway, and when he joins Rick after the jog, his shirt is completely dry. (00:03:10)
Continuity mistake: When Higgins starts yapping about the fascinating case of the homosexual corporals in Wales, Magnum sighs with an arm over the couch's back, changing from the earlier pose between cuts. (00:48:20)
Continuity mistake: At the end of the episode, Joy is laughing when Higgins mentions the various bands; her position on the couch changes rather obviously between shots. (00:48:00)
Continuity mistake: The bike falls down diagonal to the road lines, but it's practically parallel in the rest of the scene. (00:27:00)
Continuity mistake: Rick's hand with the remote turns at every cut when he makes the password joke on a depressed Higgins. (00:26:20)
Continuity mistake: When Magnum does his puking act to make his best friend lose a lucrative job, the lady's hair is in front of her shoulder hen the camera is in front of her, windblown away from it when the camera is behind. (00:21:10)
Continuity mistake: The valet brings the Ferrari in front of the club. Digger leans on it with her right hand, dollars in her left hand, but in the next shot the money is on the same hand she is leaning on. (00:07:00)
Continuity mistake: At the club, Rick teases Magnum about not being able to break the ice with Joy Doyle. He has his hand on the fruit juice glass, off it, and on it again. (00:05:05)
Continuity mistake: Higgins is telling Magnum about the poison. Magnum asks, camera on him " Are you sayin' she wasn't kidding." A babe in a light blue bikini walks in the background, right to left. Cut to Higgins responding, which lasts 8 seconds, and the same woman is exactly where we left her walking behind Tom Selleck. (00:36:10)
Continuity mistake: Louise pours coffee from the thermos - still hot overnight. The cup in her right hand has the handle pointed to the left (approx at 11 o'clock). Her sister and Higgins pop up from the door, and now the cup is pointed at 5 o'clock. (00:28:10)
Continuity mistake: Louise praises the "masterful" way Magnum took the yoyos' punches; her hand jumps from one side of Magnum's chest to the other. (00:26:05)
Continuity mistake: At the end of the scene in the freshly painted guest house, Louise undoes a button on Magnum's shirt that has been undone all along. (00:27:20)
Continuity mistake: Magnum drives to meet Louise for, he believes, the last time. He's wearing a purple polo shirt, as opposed to the normal views where he dons a dark green one. (00:18:30)
Continuity mistake: It's windy when Magnum gets down to do some push-ups. In the close-up of the push-ups though, the spot he is exercising at changed, since the wind is reflected much more in the movement of the shadows of the ground. (00:04:45)