Un terribile cocco di mamma

Michael Crawford performed all his own stunts. When performing stunts, he usually wore gloves, so if he suddenly appears wearing them, a stunt is usually about to follow. For this reason, there sometimes appear to be continuity errors (no gloves/gloves/no gloves).

Christmas '75 - Learning to Drive (special episode). When Frank is driving the white mini in the country lane, trying to overtake the lady on the bike, there is nothing behind the mini, but then a split second later he is being followed by a silver Renault. As he tries to overtake the cyclist, Frank is followed by a brown Triumph, then a second later a yellow Ford Anglia is following him. Frank also appears to drive along the same stretch of road several times, as he keeps passing the same parked cars.

Edited into To Be Perfectly Frank (1977)