At around 10 minutes Archer swipes his fingers across the cake but in subsequent shots there is no icing missing.
When Jonathan uses the PA for the first time, he presses the TALK button to speak but then he adjusts his tie with both hands and also flips through his papers with both hands.
The credits state: "Filmed in the Commenwealth of Massachessetts"
when it should be spelled "Commonwealth of Massachusetts"