Brick's commercial shows his desk is in front of his bookshelf. When Peter visits his office, his desk is in front of a window. When the camera cuts to Peter the bookshelf is in front of Brick's desk.
Brick's commercial shows his diplomas are to the left and right of the bookshelf. When Peter visits his office, the diplomas are on the left wall and right side of the office window. When the camera cuts to Peter the bookshelf is in the background without any diplomas at its side.
Before the first courtroom scene, the Courthouse clock shows 10:15 and 3 sedans are parked in the parking lot: a blue one, a red one and a silver one. After Brick makes the surprise reveal a new shot of the Courthouse shows 10:15, but the blue sedan is replaced by a blue mini.
Brick arrived at the trial when the Courthouse clock showed 10:15. When Cleveland, Quagmire and Joe arrive with new evidence to help Peter's case, the clock on top of the Courthouse shows the same time: 10:15.