Visible crew/equipment: When Emily and Bob get into the elevator to go to lunch. The camera pans over to the door to Bob's office. The shadow of the camera is visible on the wall.
Have You Met Miss Dietz? - S2-E6
Visible crew/equipment: The camera is on Carol sitting at her desk talking. Behind her, you see a shadow of someone walking by. (My guess is that it was Jerry Robinson getting into position to enter the scene about 23 seconds later from that same location.) (00:07:45)
I Owe It All to You... But Not That Much - S1-E13
Visible crew/equipment: When Bob and Howard enter Jerry's apartment, set lighting is visible at the right. (00:17:00)
Visible crew/equipment: After Carol and Don go into Bob's office, the shadow of the boom mic is visible on the wall behind Bob.
Anything Happen While I Was Gone? - S1-E10
Visible crew/equipment: When Cynthia leaves Bob's office, a crew member can be seen by Bob's desk. (00:06:25)