Saving Face - S3-E3
Revealing mistake: After they drop the casket and Provenza says 'guess you can take it with you!', the close up of the dead girl shows her close her mouth.
Just Let Go - S1-E4
Revealing mistake: When Lexy falls through the railing, there's a few shots where you can tell she's been replaced by a (probably adult) stunt double. She suddenly seems quite a bit taller, and noticeably has more muscle tone in her legs.
Beauty Rest - S4-E5
Revealing mistake: Kathy Ireland is supposed to be dead but watch carefully and you'll see her chest move when Minnie Driver's doing CPR.
Revealing mistake: Creek reads a newspaper article about Tracy, a missing schoolgirl. The first paragraph of the article is about the schoolgirl, but the rest is about John Major (who had just been ousted by Tony Blair as prime minister when the episode was first aired, but, assuming this was filmed some months earlier, would still have been in power). The first line of the article following the first paragraph starts mid-sentence, as if the first paragraph has simply been pasted over the top of the existing article. This mistake is surprising as there is a photograph of John Major alongside the article and the newspaper remains in shot long enough for it to be spotted without the need to pause the DVD or video.
Revealing mistake: When Mr. Hathaway contacts Scotty as they dig up his son's bicycle, a shot of Hathaway shows Los Angeles' US Bank Tower in the background. The series is set in Philadelphia.
Revealing mistake: In the close-up of Frost's hand while the doctor is stitching up his wound, you can see the delineated edges of the latex make-up patch used to simulate the injury. (00:12:30)
Revealing mistake: While Holmes and Watson are investigating the crime scene, there is a shot of them that shows the dead man's hand. His hand is visibly shaking, revealing the actor is struggling to maintain the position of his hand.
Revealing mistake: Near the end, you're able to see the device used to blow open the kitchen door to make it look like a bomb went off. (00:34:55)
Revealing mistake: When Jamie sits down after rappelling down the canyon wall you can see that he has climbing rope attached to his harness. It's wrapped in duct tape to look like its the rope he and Adam made of duct tape. This may just be a safety line to support his weight if he duct tape rope snaps, but the Mythbusters usually point out any backup safety systems and explain that they are there for caution and don't contribute to the test. (This was explained in the aftershow. It was a safety line required by the shows insurers).
Destiny (2) - S1-E22
Revealing mistake: Throughout the scene where Max interrogates Pierce, the projector changes slides at irregular intervals with no one touching it. (00:22:50)
Revealing mistake: The FBI woman picks up the phone to speak to her boss but the phone is off. (00:22:38)
Episode #1.3 - S1-E3
Revealing mistake: When Lombard looks at Vera after realizing she stole his gun, the unruly wisps of hair are on his left temple, while in the rest of the scene they are on his right. The shot is mirrored, as you can see that suddenly it's like he's wearing a woman's shirt, with buttons on the left. (00:38:45)
Revealing mistake: As Sgt. Cain and Chief Lain stand by Marjorie's dead body lying on the hotel bed, discussing her death from an overdose, you can see her stomach rise and fall slightly, though she's supposed to be dead. (00:18:00 - 00:20:00)
The Alchemy Murder Case File 1 - S1-E6
Revealing mistake: When Kindaichi shifts the stage screen Miyuki is holding, her fingers are not gripping the sides in the new position. Unless she is keeping it up sticking the back of it to her palms like Spider-man, it is impossible. She does hold it normally in all the other shots. (00:01:55)
Revealing mistake: When Roberta Halton knocks Rob unconscious, you can see that the blunt object barely even makes contact with his head.
Revealing mistake: In the scene where the wife comes in to the morgue to view her dead husband, who she helped to euthanize, the dead man is breathing throughout the whole scene. You can see the sheet rising and falling at his stomach. (00:22:15 - 00:24:05)
Revealing mistake: When Artie demagnetizes the lab coat, Claudia falls from a high altitude, but when the shot cuts to her landing on the raft, you can see that the actor jumped from a position much closer to the ground. (00:39:00)
The Royal We - S3-E2
Revealing mistake: On the RV of the guy being accused of molesting the girls, someone has written "PERVERT" in red spray paint. At a point you see Lightman next to a car, and the RV in the background, and the text is mirrored reading: "TREVREP", showing that during editing, this shot was flipped. (00:15:30)
Revealing mistake: As the RCV enters the gravel field with the bomb, you can see a person in shorts walking casually in the background, despite the area being sealed off.
Revealing mistake: Ben Matlock is hosting a pre-wedding party for his goddaughter. Several cars are parked on both sides of the street in front of Ben's house. Each time the front door is opened, The View seen from inside the house looking out is the same matte painting used in every episode. It shows a house and trees but no cars.