Heroes (2006) - 6 major mistakes

Continuity: When Mohinder is back in India, his mother tells him that his sister Shanti died at the age of 5, when Mohinder himself was 2. In "The Hard Part", Mohinder tells Molly Walker that Shanti died before he was born, and shows her a photo of Shanti (who looks 5 years old) and his pregnant mother.

Continuity: S02E01 "Four Months Later". When Claire hugs Mr. Bennet she is holding her note in her right hand. In the next shot as she turns around and runs off to school the note is in her left hand.

Continuity: When Matt Parkman gets thrown out of a window by Niki Sanders, he lands at least a few stories down and has a cut upon his head. The amount of blood on his head differs significantly from shot to shot.

Visible crew/equipment: S02E09 - When Claire runs away from Bob after he calls her "Ms. Bennet", you can see Bob's shadow and another person's shadow on the ground. Since no one else was standing next to them, it has to be a crew member, most likely a camera man based on the odd shape of the shadow.

Visible crew/equipment: S02E01 "Four Months Later". As the samurai warriors are about to engage the attack, a close-up shot of Hiro turning around reveals the white screen reflected in his glasses.

Factual error: When they show the comic book and Hiro looks up the artist's address, it is listed as 215 Reed St. 7. The door to the artist's loft clearly says his address is 861.