The title of the film Gene is shooting on 8th October (presumably 1972) is "Countdown." The director is Chris Jefford, the producer is M. Berman, and cameraman is F. Watts. This is a neat in-joke: Monty Berman is the series' producer and Frank Watts the Director of Photography.
Parminter's home telephone number is 018464316.
The title hails from a 1908 British music hall song, composed by C.W. Murphy and Will Letters, and originally titled "Kelly from the Isle of Man."
This was the tenth show broadcast but was clearly shot earlier because Sue Gerrard, as Bradley's secretary Jane, is wearing the same outfit she wears in the series' opening titles. This was also Gerrard's second and final appearance in an actual episode and her final acting credit in television or film.
A year later Anouska Hempel (Milena Corri) and Eric Pohlmann (Luigi, the Bartender) appeared together in the sex romp Tiffany Jones (1973). Hempel played the title role.