Visible crew/equipment: During the flashback, while Magnum is on the longboard paddling five miles to the island, the chopper is flying over the open ocean when TC starts talking to himself about Magnum bucking for a section-8, and as the chopper's nose moves upward the reflection of set lighting, etc, can be seen on the windshield. (00:17:05)
Luther Gillis: File #521 - S4-E2
Visible crew/equipment: After Tanaka gives Magnum one day to come up with answers, it cuts to Magnum and Luther in the Ferrari. In the shots facing Magnum, visible on his sunglasses are the reflections of filming equipment equipment directly in front of the windshield, as well as attached to the driver's side door. The device on the door is a bit visible again twice, after they're released from jail the second time, and after Luther's visit to the ER. (00:28:55)
Visible crew/equipment: After Rick slugs Magnum at the beach, it cuts to Higgins fixing his broken miniature airplane at his desk, then just as the mini airplane collapses onto the desk, a crew member's right hand (presumably he was holding up the airplane's tail) with a ring on the index finger, is visible at the right side of the screen. (00:28:15)
Visible crew/equipment: At the bingo fundraising event, in the shot from behind TC as he hands someone a few bingo cards, as the camera moves backward two white tape marks are visible on the grass. (00:30:45)
Visible crew/equipment: Magnum stops in front of the bar building on the beach of the King Kamehameha club asking his friends about his odds. They laugh him off, of course. In Tom Selleck's close-ups you can spot in the sunglasses TC's reflection far in distance with his yellow polo, but there's a man standing much closer that shouldn't be there. (00:04:10)
Visible crew/equipment: One of the barrels involved in the stunt that flattens one of the bad guys rolls towards the camera and hits it rattling it. (00:40:55)
Squeeze Play - S4-E7
Visible crew/equipment: During softball practice and the practice with Killer, there are moments where there are visible rectangular outlines of the hidden mic transmitter on a player's back. Two examples are, when Magnum is up at bat Rick bends over to pick up a ball and the bulge is on Rick's back, and when Lola slams her bag of tip money into Killer and she bends over him the bulge is on Lola's back. (00:10:05)
Squeeze Play - S4-E7
Visible crew/equipment: While Buzz and his "exhibitionistic entourage" are at the estate, when he tells Higgins that he wants to make Robin's Nest fun, the reflection of the reflector screen is visible on the lenses of his glasses. (00:12:30)
Visible crew/equipment: After TC crashes into the pigpen fence he offers to take Leon to the hospital, and just as TC lifts Ima and places her inside the Ferrari, the tip of the low boom microphone is visible as it moves, at the left side of the screen. (00:05:10)
Visible crew/equipment: When TC pulls the van up to the estate gate, he and Leon walk over to the gate, and the white tape mark is visible on the ground in front of the gate. (00:05:35)
Operation: Silent Night - S4-E10
Visible crew/equipment: When TC makes a successful crash landing on Frenchman's Island everyone exits the chopper, and as Rick says, "Hey, you know what this place is," the boom microphone is visible moving around at the bottom left of the screen. (00:05:30)
Operation: Silent Night - S4-E10
Visible crew/equipment: When TC first starts singing "Under the Boardwalk" while he's fixing the chopper, just as he leans over the toolbox, the legs of a crew member wearing jeans are visible under the chopper, at the left side of the screen. It cannot be Rick, who's wearing white slacks, or Higgins, who's wearing his typical trousers, or Magnum, who's in shorts since he removed the Santa suit. (00:15:55)
Operation: Silent Night - S4-E10
Visible crew/equipment: While Higgins, TC, and Rick are on the beach, Magnum is wearing the Santa suit as he runs over to them singing and carrying a quirky little tree, and in the shot facing all four men, lighting equipment is visible at the right side of the screen. (00:39:25)
Visible crew/equipment: When Magnum walks into the guesthouse and finds Danny inside drinking one of his beers, the white tape marks are visible on the middle couch cushion, where Magnum will be sitting in following shots. (00:13:10)
Visible crew/equipment: While TC is driving the van helping Benny deliver the newspapers, the hidden mic taped to Benny's chest, under his shirt, can be seen in a few shots from the van's passenger window, during this scene. (00:32:30)
Visible crew/equipment: Inside Benny's glasses when he is taken back to the Estate is the reflection of the set light screen. (00:39:10)
Visible crew/equipment: By the car exit of the Mokihana, both in coach Lum's car and in the Ferrari you can see the reflection of people standing by to film the scene. (00:44:10)
Visible crew/equipment: While Susan and Magnum are locked in the vault, when Susan pours the last of the wine into Magnum's cup and in following shots, the shadow of the moving boom mic is visible behind Magnum. (00:33:15)
Visible crew/equipment: When Magnum gets the bank vault door open he rushes to get Susan, and the boom mic moves around at the top, center of the screen. (00:38:05)