Visible crew/equipment: In the study, when Magnum tells Higgins that he opened the front gate for Rick and TC, Higgins then reminds Magnum about the poet who'll be staying at the guesthouse. Then Magnum walks over to the desk and we can see the actor's white tape mark marking the spot where he sits (it's gone when he stands up later). (00:37:35)
Visible crew/equipment: After Magnum walks out of the guesthouse brushing his hair, in the next shot Detective Kaio is standing alone on the grass by the garden wall, with nothing particularly noticeable on the ground. In the next shot, as everyone else joins Kaio, now notice all the small branches/stones which are strategically placed on the grass to mark all the actors' positions, especially the two branches placed as a "T" where Magnum stands. (00:29:50)
Other mistake: A plastic bag with a wallet and a watch, placed right next to a claymore mine when it explodes with a whole car, would hardly stay perfectly intact, and completely untouched by the police when they already towed the car to the impound lot.
Other mistake: Magnum spots a patrol car inside the impound lot. He and TC duck down, and they are at the side of the car. The same side the camera is at, when it gives us a view of the patrol car passing by. It's plain daylight, and they officers have to be completely blind to Miss those two big dudes lying by the side of the car in a spot they have a clean eyesight on. (00:36:20)
Other mistake: The whole Ferrari/pick-up truck shenanigans of this episode conveniently forget Higgins having usage of a perfectly good Mercedes. (00:47:00)
Revealing mistake: During Magnum's fight with the security guard, the guard sells the punch a mile before it hits, and in the end supposedly goes KO, but is still breathing hard and moving. (00:42:30)
Audio problem: When Ox punches Magnum in the final act, the one oonf!-ing in pain is seemingly Denny Miller and not Tom Selleck. The canned sound when he goes KO a few seconds later is equally disjointed. (00:42:10)
Plot hole: Magnum is defending his client from the detective's interview, and doing so he says "The bomb that blew up Lindsey's car could've been planted at any time yesterday." Now, Magnum had no way to know that the murder happened through a car bomb; he just learned of Bart Lindsey's death from Higgins, and he rushed to the beach without getting additional info, nor seemingly this info was given by the police crew in the first place. but he knows! Magnum is obviously the murderer. Not really, but it's the kind of statement that gives a murderer away in traditional whodunits, generally. (00:31:00)
Continuity mistake: Magnum is eating a banana and asking Rick to do his job for him. Rick says "Then you're not sure that this Lindsey guy knocked his partner off" and folds his arms, which are again extended as before after the cut. (00:27:25)
Revealing mistake: In the car explosion, the dummy inside the car is actually quite well done, but the camera lingers too long on it giving away the complete lack of any movement before the blast. (00:27:50)
Continuity mistake: TC is taking plenty snapshots of Rick while he gets set for lunchtime at the club. In the wide angles the wind puffs up the tablecloths, while in TC is snapping away in close-ups with the cloth undisturbed. (00:23:00)
Continuity mistake: Magnum meets Florence Russell clearing out of the office. He tells her that they are looking for a place where to put the equipment, and she shrugs saying "It's allright." She had a frame in hand that disappears to the opposite side of the paper bags she had her hand on. (00:21:30)
Continuity mistake: The crazily intense security guard catches Magnum searching the desk and says " Take root and heist 'em." Magnum holds still in two different positions between shots.
Other mistake: This episode is the season 2 finale, but was obviously produced early, with numerous shots from it appearing in the opening. A big deal is made out of Magnum borrowing "the Rolls Royce of cameras", but he has used routinely the camera throughout the season. Higgins even asks him if he needs instructions about the various lenses, when one of the previous episodes involved as sub-plot replacing one of the priciest ones, and the feature-length episode had a bit about it as well.
Continuity mistake: The second model in the opening show, Wendy, wears a robe with a necktie that looks entirely different length and position-wise at the cut. (00:02:10)
Continuity mistake: The announcer is describing the first bikini. The model, seen through the screen, slips the cover-up robe in her left hand, but at the cut that hand is free and goes on her hip. When she makes her exit from the stage, the same robe goes from her hip to over her shoulder. (00:01:45)
