Series one's surprisingly cheap and poor-quality title sequence was quickly replaced by more-animated, higher-quality titles for series two.
Curiously, while re-runs of both "Man about House", and "George and Mildred", seem to be on almost continuous rotation on itv3, even in the 2020s, "Robin's Nest" seems to be absent from re-runs for unknown reasons.
The bistro's fictional address was: Robin's Nest, Faulkeners Walk, Fulham SW6.
The first two series' success led to Thames TV commissioning more than double the length to 13 episodes for series 3.
Richard O'Sullivan also composed the series' theme tune. It was arranged by Brian Bennett (of The Shadows) who starred with O'Sullivan in the Cliff Richard films Summer Holiday (1963) and Wonderful Life (1964)