Continuity mistake: TC is driving his team of youngsters for the 4th of July game; in the aerial shot of the van, it is driving a different road than the one shown in the interior view, and it's driving on the leftmost lane while it had cars on both sides of it and the right railing has been closer. (00:08:00)
Continuity mistake: Agatha is consoling Higgins for the loss at polo. She tells him that it was good strategy as she puts the pot down and puts her hand on the teacup. Next shot and as she elaborates she is holding nothing and putting her hand down to get the cup just then. (00:19:35)
Continuity mistake: During the chess game, Higgins does a Magnum on Agatha with his "I know what you're thinking...", causing her to raise her hands already at the very end of that specific shot. She will start the action all over again only later in a subsequent shot. (00:27:35)
Continuity mistake: When TC looks at a passing Ferrari and thinks about Magnum, the woman in close-up has her hair heavily windblown, while it's mostly still in the wider angle. (00:29:00)
Continuity mistake: TC gets anxious after passing by "She-Magnum" and honks at the cars in front of him at the traffic lights. It's obvious from the light and the buildings that the traffic lights shot is not matching the other views. (00:29:10)
Continuity mistake: Magnum's dad says on tape "I'll be home by the 4th." Both Magnum and his mom cheer. In close-up on Mrs. Magnum as the tape says "I hope so", Mini-Magnum is casting a shadow on her, but he was at greater distance in the previous shot, no shadow. (00:36:50)
Continuity mistake: TC and Higgins look into the guest house. From the top of the stairs looking down, there's a newspaper that is perfectly perched on top of the lamp shade. When they get downstairs and Higgins muses about abhorrent acts of perversion involving lizards, the sheet got limp. (00:37:45)
Luther Gillis: File #521 - S4-E2
Continuity mistake: At the start, when Luther gets out of his car the license plate number is AUF-365, but after Magnum's visit to the ER, when Luther is at Robin's Nest his plate number is AUF-366. It's the same rented Ford Fairmont Futura. (00:02:40)
Luther Gillis: File #521 - S4-E2
Continuity mistake: In jail, Luther asks Magnum "So you're a private detective, uh?" In close-up he's close to Magnum's knee, after the cut on Magnum correcting him with "Investigator" he's by his shoe. (00:06:20)
Luther Gillis: File #521 - S4-E2
Continuity mistake: Luther tells Magnum "We're working the same side of the street"; in that wider angle the shadow on Tom Selleck's face and the pillow - actually how deep onto the pillow he is lying - changes compared to the close-ups that follow and precede. (00:06:30)
Luther Gillis: File #521 - S4-E2
Continuity mistake: When Luther riles Tanaka up, at the beginning a cop with a yellow shirt and one with a black patterned one are in the background. First the yellow one, then the black one in separate shots move past the desk and exit stage left carrying a folder. A policewoman then does the same. In the second part of the scene all these people make their exit to the left again. (00:08:30)
Luther Gillis: File #521 - S4-E2
Continuity mistake: Magnum gets dropped by the bullet to the temple; his left arm is stretched outwards, right angle with the body, but when Luther kneels by him to check him out on that side, the arm is not in the way. (00:13:00)
Luther Gillis: File #521 - S4-E2
Continuity mistake: Luther drives Magnum to the Nest while he shows him the book he wrote. During the trip, the cars behind either man in the rear window vanish at each cut, not appearing behind the other - particularly noticeable when a large truck roars past Luther right before Magnum tells him "Here we are" (00:14:30)
Luther Gillis: File #521 - S4-E2
Continuity mistake: Agatha reacts to the "He was shot" bit of info with concern in a close-up. A few seconds later there is a medium shot of her, and her karate gi is a whole lot more open. Definitely not the type of character or scene where it's implied she's showing some cleavage for Magnum. (00:15:50)
Luther Gillis: File #521 - S4-E2
Continuity mistake: Magnum is at the guesthouse with Luther. He grabs a Coops beer from the fridge, but does not close the cabinet door. Which is closed when Luther says he's gonna go get Artie. And then open again when Tom Selleck gets up and is in the same shot as Eugene Roche. (00:19:05)
Luther Gillis: File #521 - S4-E2
Continuity mistake: When Luther and Magnum are arrested at Keanu's cockfight location, Luther is wearing his red Hawaiian shirt with palm trees design, then when Tanaka calls them both "walking menaces," the design on Luther's shirt is different now, though it's still the same style. (00:25:50)
Luther Gillis: File #521 - S4-E2
Continuity mistake: Magnum resolves to shake off the guys who are tailing them; to do so he switches gear; the wrist of whoever is doing that action in close-up wears no jewelry, and Magnum has a metal bracelet. (00:29:00)
Luther Gillis: File #521 - S4-E2
Continuity mistake: Luther is mumbling about the "race car" not being helpful in the car jam. The car at their side changes, and there's an extra line behind it - they were in the middle line in the previous shot. (00:30:20)
Luther Gillis: File #521 - S4-E2
Continuity mistake: Luther and Magnum figure out that there's something wrong with the nun's words, so they turn around and star running back. There's a street worker behind them, dressed in yellow and red. She sidesteps out of Luther's way. To the outside. In the reverse shot she is walking unperturbed between them. (00:33:30)
Luther Gillis: File #521 - S4-E2
Continuity mistake: Supposedly Magnum and Luther have been tailed just after release from prison (the second time), but they have a complete change of clothes and accessoires. They can't be back from Robin's nest, because Higgins is outraged to see the man again on the premises - and really everything about dialogue and situation implies the opposite.