Never Again... Never Again - S1-E7
Audio problem: During the close-up of the photo held by Rick, Magnum's voice saying "Her right arm" is dubbed in with a marked difference from the rest of the conversation (added in post - perhaps to specify which arm, or originally the wrong one was mentioned and they corrected the mistake, but the artifact is strikingly noticeable). (00:39:50)
Audio problem: The episode opens with a news report, which itself opens with the words; "In Belfast, Northern Ireland, where a bomb blast destroyed an office building last Tuesday, a special task force under the command of Brigadier General Alistair Folkes", etc. The report runs for a minute, then the phone rings and Higgins, off-camera, answers. The audio of the TV fades in and out to leave room to the relevant conversation, but you can still hear that it's going in a loop, repeating the exact sentence it started with and moving on from there word by word. (00:02:00)
Thank Heaven for Little Girls and Big Ones Too - S1-E4
Audio problem: Magnum just took TC to the bad part of town. TC says "Hey, look, don't forget you called me, I didn't call you." with the audio noticeably much lower than the rest of the conversation, and out of synch with Roger E. Mosley's lips. (00:13:00)
China Doll - S1-E3
Audio problem: Sorting the whole 'protecting the vase' business when it's first brought up, Higgins asks "Is the vase Chinese?" The audio in the scene becomes really spotty, culminating with Magnum saying "Mai Ling" in audio, with Tom Selleck mouthing something else entirely. (00:17:40)
Don't Eat the Snow in Hawaii: Part 2 - S1-E2
Audio problem: Rick sprays the hitman with bullets, and hits the car behind him. The car is not Robin's Ferrari, but regardless of that, the car alarm of the Ferrari stops the moment that black car is hit. (01:25:25)
Don't Eat the Snow in Hawaii - S1-E1
Audio problem: Ensign Healy parts from Magnum saying "See you, Magnum", but his lips barely move, not long enough for all the words. (00:31:05)
Two Birds of a Feather - S3-E19
Audio problem: When Mr. Sato on the phone asks "What is going to happen to my old bird", those last two words appear to be dubbed in and not match the lips. (00:14:25)
Audio problem: When Higgins lists the various things he expects to run into when he enters' Magnum mancave, there's a noticeable difference in the ambience of the audio when it cuts to Magnum as he mentions the "soiled garments."
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)
Audio problem: Not getting much sympathy from his buddies, Magnum just hands his coffee mug to Higgins and bolts off to go meet Karen. If you look at Roger E. Mosley face when he says "Hey Thomas, Higgins said we don't have t...", the audio is dubbed and does not match his lips' movements. (00:07:00)
Audio problem: Earl captivates Higgins with the story of his wrestling antics with an old army buddy of his who'd beat him on the ring with his peg leg. Higgins then exclaims something, but John Hillerman's lips move with no sound, only Tom Selleck's voice is heard. (00:17:55)
Audio problem: Higgins watches Magnum spit what he chewed on and gives him a "Magnum..." full of contempt. Magnum responds ever cheerful "Sorry, want a bite?" but the audio of the sentence is much lower than in the rest of the scene. (00:13:10)
The Eighth Part of the Village - S3-E3
Audio problem: When Higgins' mail order bride (well, not really) bows deeply for Magnum and her hat falls off, she says "Thank you, Higgins san", but the actress, overwhelmed by her own abundant mane, is just grinning and her lips don't move. (00:11:15)
Audio problem: Back to the mansion after meeting Simon & Simon in the hotel room, Magnum narrowly misses the villain. Still clueless about it, runs to Higgins and hops over a wall. The ghastly yell he emits during his athletic effort is entirely off-pitch and at a different volume than his speech. They might as well have used a Wilhelm scream here. (00:41:30)
Did You See the Sun Rise? - S3-E1
Audio problem: TC is calling Higgins to figure out where he could find Magnum. Higgins is busy with his construction work, but since the phone keeps ringing he has to answer. The second ring has been edited in a split second of delay to John Hillerman's reaction, though, so Higgins 'jumps' too early. (00:32:30)
Did You See the Sun Rise? - S3-E1
Audio problem: The noise of TC's helicopter powering down is Out of Sync with the speed of heli blades you can see in the reflection of the glass, and the effect on nearby vegetation. (00:09:40)
Audio problem: In their struggle on the lookout point, Don Cassidy throws the gun over the railing. A clattering noise is heard as if the gun fell on a solid pavement, but the way the action is shown, it went down in a spot where a few seconds later during the suicide attempt there's nothing but a freefall. (00:46:05)
Audio problem: The whole episode revolves around a radio DJ, who calls the various songs - however, for licensing issues, contrary to what the DJ advertises, the songs (including at least four Beatles hits, Elton John, and a version of Satisfaction that already appeared in the celebrated Season 3 opener) are not the originals, but stock covers.
Squeeze Play - S4-E7
Audio problem: During the first phases of practice, Kioki in a close-up exclaims "All right!" in an obvious redub with background noise almost silenced. (00:08:25)
Audio problem: When Vivian tells Higgins "Will you visit me in England?" as the car takes her to the airport, a stock buzzing sound of an electric window is dubbed in, but look at Jane Merrow's shoulder; she's cranking the handle. Not quite the car for a Duchess. (00:46:10)