Dirty Harry - S4-E5
Continuity mistake: When Dexter listens to Officer Lundy's tape recording, we hear Lundy say that the Trinity killer's weight is 190 to 200 pounds. When we saw him recording that, he said 200 to 220 pounds.
Plot hole: If Noah could be brought back from the dead with Claire's blood why couldn't they bring back Nathan? Was turning Sylar into Nathan really the first thing they could think of?
Revealing mistake: When the Capri crashes into the goal net & they go to arrest the suspect you can see sky satellite dishes on the houses in front of them. Satellite TV didn't start in the UK until the 80s.
You Gotta Lose This Job - S3-E7
Visible crew/equipment: When 'Hannah' and Lilly walk into Rob Reiner's office, the multiple head studio lights are reflected on Hannah's large black sunglasses.
Continuity mistake: When Tommy parks his Ford Mustang up on the pavement, he stops right in front of a post. Later, when he drives away, there's nothing in front of the car.
Revealing mistake: In the scene after the fire, when Kyle is playing with a candle, as he picks up the candle his belly button is visible. It has been established that Kyle has no belly button, therefore this is a mistake.
Revealing mistake: In the opening credits, Beefy Bert has a different hair colour to what he has in the actual episodes. This was not included in Series 3.
Fifty-Fifty - S1-E3
Continuity mistake: Jen is sitting at the sofa with the phone on her lap, waiting for Daniel's call. She is wearing no shoes. In the next shot, she stands up and instantly has black high heels on. (00:14:30)
Children of Earth: Day One - S3-E1
Revealing mistake: When the children are possessed by the 456, they're supposed to be frozen and stare blankly ahead. But during the second possession, as the camera is panning across a school playground, a boy on the far right is looking directly at it. As it moves closer to him, he swivels his eyes back to where they're supposed to be. (00:16:30)
Continuity mistake: When the Polaroid photo is shown of Betty and Walter with his boss and his wife, Betty's hands are behind Walter and the boss's wife's back. When it was taken, her left arm was out and her hand was on her own leg.
What About Calling All Friends... - S2-E19
Continuity mistake: When Adam is pushing the stroller past the line at the cupcake shop the mother talking to her son has her hand in her pocket, but when the camera shot cuts it's then on her hip.
Continuity mistake: When Theo hits the fence it becomes snapped a bit but in the next shot you can see him preparing to charge at the fence again, and it is whole again.
Continuity mistake: Episode: "Man Hunt": When Jonas tries to interrogate the hardware store owner, the owner falls off his chair, knocking it over. In the next shot it's standing upright again.
Continuity mistake: During the test. Light's collar is tucked in his shirt, but a few seconds later it is out.
Continuity mistake: At the end, when Shark is holding his daughter, his hands are on her shoulders and then on her face when the camera angle changes.
Continuity mistake: The broken glass on Nathan's face and arms disappears when he is pouring out the rice, but reappears when he is yelling into the PA system.
Continuity mistake: Just before the robbery, Jake throws some water bottles and a flashlight over a small mound into the bushes, to hide them from the thieves. But when Mimi later picks them up, they are much closer to the truck, and on the other side of the mound. In fact, the bottles and flashlight would have been in plain sight for the robbers where she picks them up.
Continuity mistake: In episode K&R III - Part 3 When the Dr is coming out to tell Danny that Jordan is responding to the clotting agent, he has a blood spot on his left shoulder, when the shot changes to Danny and back to the Dr. the spot is gone.