Episode #1.4 - S1-E4
Visible crew/equipment: There is a boom mike shadow on the wall in the entrance passage when Tucker, Alan, Benny and Tommy return to the swimming pool to look for Benny's medal.
Episode #1.4 - S1-E4
Revealing mistake: When Justin is dropped off out side the school in his father's car you can see Benny behind the fence waiting for his cue.