The original radio series was broadcast on BBC Radio 4 in 1999, with Sean Lock in the role of Vince.
All exterior shots in the first season show that Vince and Errol's flat is in fact on the fourteenth floor, not the fifteenth as depicted by the floor number on the landing wall in interior shots. In the second season, exterior shots show the flat on the fifteenth floor.
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We asked Doctors Jo Wilson, April Kepner, and Andrew DeLuca to tell us the episodes of the show that they think are the most essential to understanding their characters.