Alison's mother Margaret is never actually seen on screen throughout the entire series, even though she is present throughout the family's stay and referred to by the other characters.
As the first fully scripted colour production by Granada Television, the series takes full advantage of the color red, not only in the form of Gillian Hills's stunning red hair, but her wardrobe is almost entirely made up of red miniskirts, bikinis, hats and raincoats.