The original pilot was recorded on colour videotape as part of the "Comedy Playhouse" (1961) series and had a "BBC Colour" credit at the end. However the original videotape was lost or wiped, so for years the only known copy of the episode was a black-and-white film-recording. In 2008 however, technical engineers restored the edition to full colour by utilising the colour signal information recorded into the monochrome film print.
Originally transmitted unexpectedly during the 1972 Munich Olympics when the BBC needed replacement programming following the massacre of Israeli Athletes by a Palestinian terrorist group.
This pilot episode was originally shown as an episode of "Comedy Playhouse" (1961), a series of self-contained situation comedy plays.