Visible crew/equipment: Series 19, "Pandamonium": When Paul and Barry are trying to find the panda, Barry (dressed in a panda costume) thinks he is looking at his own reflection. You can see the camera and cameraman reflected in the mirrors, and you can also see people watching the scene being filmed.
Visible crew/equipment: In the the episode "In-console-able" from series 19, in the kitchen when Paul accidentally puts custard and hundreds of thousands on a dinner, he puts the lid on it and when the camera zooms in you can see a cameraman with a camera recording and Barry getting ready for his take.
Oil's Well That Ends Well - S19-E7
Visible crew/equipment: In "Oil's Well That Ends Well" in series 19, when Barry runs outside to check on the oil, the scene moves to the left to the neighbour's house, and you can see the cameraman and camera reflection in the patio door window as it is pulled back.