Continuity: Season 2 episode 7: Lori and Declan are making up - the wall behind them changes from a brick wall to a wall made out of porous concrete as the light goes back on.

Continuity: In the Season 2 episode "What's The Frequency, Kyle?", Steven tells Kyle that he wrote a letter to his father, and that his father ripped it into pieces in front of him. Later in the episode, when Steven finds the letter in his dad's Bible, it has a couple of small tears around the edges, but is otherwise in one piece.

Continuity: Season 1 episode 10: When Kyle drives away in a car, the logos on the trunk dissapear and reappear from one shot to the next.

Factual error: In the episode where Kyle, Lori, and Josh first go to the pool together, Kyle jumps off the diving board, but he's only in the water for about three seconds before he sees Amanda, who is already swimming toward him. This means that he was in the water for just a second or two before she jumped in. That isn't enough time for anyone to appear to be drowning, especially to a trained lifeguard like Amanda.

Plot hole: In the Season 2 episode "The Homecoming", when Mr. Ballentine is telling Emily about her assignment, he sets the blue folder down near his side of the desk before he gets up. Then we see Emily pull it across the table and quickly peek in it. When Ballentine turns around, the folder is still close to Emily, which shows that she at least tried to look in it, yet Ballentine says nothing about it no longer being in the spot where he set it down. If Emily thought that it was okay for her to look in the folder, she wouldn't have waited for Ballentine to turn around before she touched it.