Revealing mistake: At the very beginning of most episodes of Series 1, during the pre-credit scene, either Paul or both of the brothers can be seen waiting for their cue. It usually lasts between one and three seconds.
Chucklevision (1987)
1 revealing mistake in Season 1 generally
Starring: Barry Chuckle, Brian Patton, Jimmy Patton, Paul Chuckle
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.
More trivia for Chucklevision