Continuity mistake: When Jan, Michael and Pam are having a meeting in Michael's office they're sitting against the front window, but during that scene when it shows Jim and Dwight talking at their desks, if you look over Jim's shoulder you'll see that the office behind them is empty. (00:06:30)
Continuity mistake: In the first episode, where Dwight is talking to Michael and Ryan, when he gets the Jello out and gets angry at Jim, look at Jim when they keep going back and forth to him. In some shots he has a Jello cup and spoon in his hand, and sometimes he does not. (00:14:45)
Continuity mistake: While Michael is introducing Ryan to Dwight and the stapler-in-jello is found, we see that Phyllis' chair is empty. Then a moment later there's a shot of her looking at Jim while sitting in her chair with no time to get there. And then the chair's empty when shown again. (00:15:25)
Answer: In the 2007 episode "Ben Franklin" when Jim is talking to Pam there is a candy bar with a purple wrapper that says "Picar-" I assume picaroon, it's hard to see past Pam. I found this trying to investigate what that candy bar is lol.