Dead Ringer - S5-E6
Continuity mistake: Magnum goes to Jack Hill's house to investigate a murder. The home has a smart lock, so he breaks in through a window. Later, Det. Chris Childs goes to the same house. This time the front is different and there is a keyhole and a pushbutton for the doorbell.
Factual error: Higgins finds a bloodstained bag in the dumpster. The stain is bright red. The blood belongs to a person who was killed late the previous night, around midnight. After being in the hot sun for many hours the blood would have oxidized and be closer to a brown color, not bright red.
Factual error: The lady who was killed had been using a shredder "for over ten minutes straight" the night she was killed, according to the handyman. Nothing was apparently missing, though. The next day it turned out that what she received was an employment contract. No matter how many pages the contract was, it does not take ten minutes to shred.
Continuity mistake: Rick pulls up in a car to the right side of a helicopter, gets out, and gets in the helicopter. When the helicopter is shown taking off, there is no car next to it. (00:38:20)
The Day Danger Walked In - S3-E5
Factual error: Higgins, Thomas, TC and Rick are locked in a freezer. Their barber friend is tapping his horn in "a pattern" Higgins says is Morse code, and announces that he tapped "move back." Not really. I know Morse Code. All I got (along with a few undecipherable things) was TOERT NMU ETM CEA OFJ DER WK. No way that spells "Move Back."
Revealing mistake: In the sequence with Zeus and Apollo attacking the intruders, the padding of the jackets' arms they are sinking their teeth into is very noticeable. (00:32:15)
No Way Out - S3-E3
Other mistake: Higgins is asked if she can hack a security feed from an office. She replies that she can do it, but it will only be audio, no video. When she hacks it, is only video, no audio. (00:14:10 - 00:15:35)
Other mistake: A mayday call is received. It is shown on the moving map display as originating to starboard of the boat Magnum and Higgins are on. They promise to go help but turn to port. (00:01:50)
Other mistake: A man kidnaps an IT tech and steals his uniform. The IT guy is quite large - at least a XXXL if not more. When the impostor IT guy walks into HPD Headquarters, he has a very well fitting IT uniform shirt. And he is of average build -maybe a medium size. There is no way he could be wearing the real IT guy's shirt without it looking like a tent.
Continuity mistake: Magnum has been talking with Higgins (and then with the home invaders) through the phone placed in the dashboard. When Sergei carjacks him, he's lucky enough to have his phone in the back pocket of his pants. (00:22:00)
Continuity mistake: The car chase opens with the 2 cars driving past a Walmart, with the sign distinctly visible. A minute later, when the police joins in and Magnum says "Maybe not", the cars speed past the same Walmart as if they drove in circle. (00:07:40)
Continuity mistake: Katya meets Magnum at the beginning of the episode. She sits on the couch in the wide shot, and the couch is strongly sunlit. The natural light in the rest of the scene is much softer and barely noticeable. (00:02:15)
Continuity mistake: The two guys who stalk Magnum take off and almost run him over. You can see them drive down a road as Magnum tumbles on the asphalt to avoid them. Then Magnum gets up, has a little exchange with Rick as they both gingerly hobble towards the car, and he finally starts it and drives off...and in the 10 seconds this takes, the car is still basically at the same spot as before. Slowest getaway ever. (00:07:20)
Continuity mistake: Higgins shows Magnum the phone with Katya in the eye of the camera; her pinky finger is right at the angle of the phone in the frontal view, closer to the other fingers in the reverse shot. (00:01:55)
Revealing mistake: Magnum runs at the beginning of the episode on the beach. In the shots from distance the beach is immaculate and even, while in the closer angles, you can pick up in the sand in the background the tracks left by the camera following the actors. (00:00:35)
Character mistake: Magnum and Higgins never retrieve the large and conspicuous device they used to hack the 'top level firewall' of the hotel database - and they even put it in a frontal USB port.
Continuity mistake: Toni thanks Rick at the end of the episode with the gift of a plant. When they are still by the gazebo, the flower is pointing different directions between shots. The plant also looks bent at a rather sharp angle in the shot when she says "I can't stay", but it's straight and fine in the rest of the scene. (00:37:30)
Continuity mistake: At the end of the episode, Rick ask to say a few words. In the wide shot ("Thank you"), Higgins is leaning her head on the left arm, elbow on the table. Closer view, and she is chilling all the way back on the chair. (00:36:55)
Continuity mistake: Magnum and TC pull over and shout at the man who just came out of the safety box deposit with a briefcase. Behind Magnum when he shouts "Russell!" you can see a woman with a baby stroller, wearing a teal top. She is getting inside a building. In Russell Chang's view, that woman is still far behind and has yet to reach the building. (00:29:10)
Continuity mistake: Magnum walks back towards Charlie after talking to Detective Gordon Katsumoto. TC by him is in a different spot between shots, one step or two steps close to him, which means being in the sun or not depending on the shot. (00:25:10)