In the scene where George Michael is about to join the army by hanging from the monkey bars, Michael grabs the clipboard from Buster, taking Buster's hook with him. When the camera backs away, we see the hook is reattached to Buster's arm.
The statue of a child holding the hand of his father appears again, first shown in "The Cabin Show". However, it has moved locations. In "The Cabin Show" it was at the S.A.D. Reunion Center next to a bench, but in this episode it is in a park across from a school and the nearest bench is about 30 feet away.
When George Sr. is watching a baseball game is his bedroom, the batter is wearing a helmet with a Chicago Bears 'C' logo. The Chicago Bears are an American Football team.
When George Sr. reaches the fake Popemobile, he tries to open the passenger side door, but it was locked. However, in the next shot, instead of entering the front seat, he's seen entering the bulletproof glass through its back door, since it was unlocked, and he was able to drive it away, thanks to the steering wheel and pedals inside the display area.
Popemobiles have never had the steering wheel and pedals in the display area. However, since this is clearly labeled as "Fake Popemobile," there might not be a need for an actual driver in the front seat.
When Lucille and Bob Loblaw are discussing Buster's enrollment into the Army, the stenographer behind Bob is clearly only pretending to type.