Visible crew/equipment: Series 17, "Let Them Beat Cake": When the inspector opens his car door just before the chuckles arrive, you can see the boom mic on a pole reflected in the window.
Chucklevision (1987)
1 visible crew/equipment mistake in season 17
Starring: Barry Chuckle, Brian Patton, Jimmy Patton, Paul Chuckle
Dear Diary - S8-E14
Visible crew/equipment: In "Dear Diary" from Series 8, when Barry's plane inspector phones up telling Paul about the plane, the boom mic is reflected in his goggles which are on his forehead.
Magnetic Distraction: Part 1 - S15-E5
Trivia: In the episode "Magnetic Distractions Part 1", when Paul and Barry are in the shop with all the TVs, and Barry keeps accidentally changing the channels, one of the channels he changes to has footage of the boys playing football from the episode "Football Heroes".