In "One For The Road", it is discovered that Robin's middle name is Oswald. Chrissy points out that his initials spell the word ROT.
Writers Brian Cooke and Johnnie Mortimer were inspired to create Man About The House after noticing increasing numbers of advertisements in the London press for flatmates of either gender - until the early 1970s it was usual for flatsharing households to be all male or all female.
The success of this show led to two highly successful spin-off series for Thames/ITV: Robins Nest (1977) as Robin starts his own restaurant with his live-in girlfiend (Tessa Wyatt) and George and Mildred (1976) with Brian Murphy and Yootha Joyce, where the Roper's move to a new upmarket area.
Sally Thomsett (Jo) appeared in this just three years after playing an 11 year old in 'The Railway Children' (1970).
Thames Television, in its original form when it held the London regional ITV franchise, would always start its own programmes with its famous River Thames London skyline fanfare animation. When they lost the franchise, Thames formed the basis of Pearson Television, and in turn the basis of what became the global FremantleMedia, containing a huge catalogue of new and archive programming. The ("new") FremantleMedia distribution versions of the trilogy of "Man about the house", "George and Mildred", and "Robin's Nest", removed the Thames opening fanfare, and either FremantleMedia, or certain broadcasters, has lightly edited some episodes across the entire run, to remove what by the 2020s would be considered inappropriate dialogue and attitudes, evident by abrupt "crash" edits, and end credits for characters that didn't appear in an episode, such as a stereotypical 1970s camp version of a gay hairdresser, in one of the early party episodes.