Looking at the envelope Beverly sent Brian's mother's pearl necklace back in, it is possible to see Beverly's full name: Beverly Hilscopto. This is a reference to the film Beverly Hills Cop II (1987).
Jo Enright's only appearance in the show; coincidentally, her only appearance in That Peter Kay Thing (2000) and Phoenix Nights (2001) were in Series 1 Episode 4 of both shows.