Continuity mistake: The chopper takes off from Higgie's un-birthday party, looking as usual. It flies over a shore to thwart Holly's plan, and doing so it has the flotation skids from a different chopper's stock footage. It is therefore also missing the birthday banner, that is present again in the finale. (00:45:10)
Operation: Silent Night - S4-E10
Continuity mistake: In the opening shots, the helicopter is the N58243 one with flotation pads, but as soon as it starts malfunctioning, the pads thin up and we switch to the usual chopper. The skids change shape back and forth again once. (00:02:05)
Operation: Silent Night - S4-E10
Continuity mistake: TC is working by the tail rotor to fix the vibration. It's red with thin white stripes. By the end of the episode the rotor is the opposite; white with red stripes. (00:06:40 - 00:44:20)
Operation: Silent Night - S4-E10
Continuity mistake: When TC shouts at Higgins for being pedantic about Ukulele Lady, he's holding at different height the piece of equipment he's repairing. (00:11:05)
Operation: Silent Night - S4-E10
Continuity mistake: When TC is lashing out at Rick for the unwarranted comment about "crashing" the chopper, Rick is casting a shadow on him under the closer angle, does not when the camera is positioned in front of Higgins weaving the basket. (00:11:40)
Operation: Silent Night - S4-E10
Continuity mistake: Rick first follows Magnum carrying branches. When Magnum passes him an additional one, look at his shirt; from the side you can see it's almost entirely unbuttoned. In the front view he has "just" the top three undone, and then he takes off his shirt when Magnum spooks him. (00:13:30)
Operation: Silent Night - S4-E10
Continuity mistake: When Rick says that the place is spooky and reminds him of 'Nam, the pieces of wood he's holding change place entirely (one was under his armpit, now it's across his chest) between shots. (00:13:45)
Operation: Silent Night - S4-E10
Continuity mistake: When the three buddies rush into the clearing before Higgins and he calls them "cannibals", he holds the palm branches at hip-height in the shot from behind, breast-high in the front views. (00:19:10)
Operation: Silent Night - S4-E10
Continuity mistake: By the Japanese wreckage, Higgins calls it a "reconnaissance plane." Rick has his arms folded. Next shot and he has his arms down; takes him a couple seconds before he folds them. (00:21:05)
Operation: Silent Night - S4-E10
Continuity mistake: Magnum and the others push Higgins' makeshift boat into the sea. Water does not even reach Magnum's knees, but as Higgins keeps pontificating from the sinking vessel, Magnum is thigh deep in salt water, with splashes all over the crotch. (00:34:00)
Continuity mistake: Serious matters of Little League espionage are discussed as TC accuses Magnum. When he says "They beat Taiwan" he has not a hand on the cooler full of Gatorade with badly camouflaged labels, but he does then, right at the cut. (00:05:40)
Continuity mistake: Rick gets the odds from Magnum and then puts the car in reverse. His left hand is on the left part of the wheel, right hand at the cut. (00:07:25)
Continuity mistake: Magnum met the Prince 5 seconds earlier and already he has enough of him and says bye, about to drive off. Danny says "Hey", and at the cut the glove rolled from under the right to the left hand. (00:08:20)
Continuity mistake: Magnum gets back to his pad and of course the kid everyone's looking for just crashed there. In the first shot, overhead, you can see that Magnum's coffee table features several magazines, and in the corner, at the same level, a bowl. Magnum fetches a can of beer and sits by Danny, but the magazines now are in a different line, with the bowl above them. (00:13:20 - 00:13:50)
Continuity mistake: Magnum comes back to the beach after some surf ski, where the prince struck a 'deal' with Ed Russler. Magnum's shirt is wet in two completely, and that's not a understatement, COMPLETELY different ways before and after John Saxon approaches. (00:28:30)
Continuity mistake: During the paperboy run, TC stops the van and asks Benny a question. Benny was holding the paper vertically, but his arm is down in the next shot, and up again next, and so on. (00:32:40)
Continuity mistake: When TC asks Benny (of course with no foreshadowing at all) "You don't wanna be someone else, do ya?" his van is parked in front of a hedge. Cut, and they are in front of garage doors. (00:32:45)
Continuity mistake: John Saxon hands Prince Danny's pic to the arcade manager holding it by the top left corner in close-up, but his fingers were on the top right in the wider angle. (00:41:20)
Continuity mistake: Rick tells (and shows!) Magnum that he's writing "a recipe for Veal Marsala for my mother back in Chicago." But the key plot element of 4-4 "Distant Relative" was that Rick raised his sister by himself, because Chicago was "a tough town to grow up in without any parents."
The Case of the Red-Faced Thespian - S4-E12
Continuity mistake: Higgins mentions Robin's project to finance "a home for incorrigible boys." He already has in hand the two bombs he reaches for in the bag during the next shot. (00:03:10)