Continuity mistake: When Ed is leaving he puts his coat on top of the box. He picks up the box with both hands by the handles, then changes how he is holding it by having one arm around the box. The shot changes and he is now holding the box by the handles again.
Continuity mistake: The box Ed pushes off the elevator lands in front of Dave. When Dave picks up the box it has moved.
Continuity mistake: Bill takes the ON AIR sign off the wall and shows it to Dave he then puts it on a shelf of tapes. Dave leaves and the ON AIR sign is back on the wall.
