Chuck Versus the Break-Up - S2-E3
Continuity mistake: When Morgan cuts the power to the home cinema room at Buy More and the angry black guy storms out, the circuit breaker box is still open. Yet, when he grab hold of Morgan a second later, the box has closed itself. (00:12:20)
Continuity mistake: When Devon arrives to the CPR course for the Buy More employees he brings a CPR-doll and puts it down on the table. Yet, a second later it's right back in his arms in the same seemingly uncomfortable position as before.
Chuck Versus the Sensei - S2-E9
Continuity mistake: The yellow pen that John Casey stabs into Ty Bennett changes between shots after Ty pulls it out. As he rotates it in front of the camera we can see that the bold BUY MORE logo is only printed once. Still in the very next shot, not only has the text changed direction (reading from the hat-side to the tip-side now), the logo have also appeared in front of Ty. (00:05:50)
Chuck Versus Santa Claus - S2-E11
Continuity mistake: When Sarah shot the Fulcrum agent and Chuck was looking that moment at his mom's bracelet, she has the bracelet on her left wrist and the red watch on her right. However, when she comes back to Buy More to talk to Chuck and hug him, she has the bracelet on her right wrist and the red watch on her left. Also, the first time Chuck showed her the bracelet, he put the bracelet on her right wrist.