The episode begins with Edmund Hockridge's song, as the usual opening preamble was edited out of the sole surviving print at some point.
The edition only existed as a monochrome 16mm film print, before the chromadot colour recovery process was applied to reintroduce the original colour; vidFIRE was also used to restore the video look.
Edmund Hockridge was, for many years, Ernie Wise's next-door neighbour in Thorpe Avenue, Peterborough in Cambridgeshire,.