When Carly is yelling at Spencer for just bringing a Dustbuster for protecting her, her hair keeps changing from messy to brushed.
When Sam first comes into Carly's room, her clock goes from 3:57 to 3:58, but four seconds later it changes to 3:59.
When Sam is in Carly's bedroom, Carly's hair keeps changing from messy to brushed and back.
When Sam's mom first enters the apartment, she pushes the front door open and it comes to rest close to her right elbow, but after Sam says "Why would I want worn out parts?" the front door is suddenly wide open.
When the Channel 8 news crew interviews T-Bo and Freddie after the robbery, the interview is broadcast live through the news camera, but they somehow manage to alternate seamlessly between two different camera angles, even though they only have one camera.