Although the series ran for 8 years, within the story universe, the series only takes place in summer season 1959, and summer season 1960.
The bulk of the location scenes of Hi-de-Hi! were filmed at a real holiday camp run by Warners (not related to Warner Bros.) in the town of Dovercourt near Harwich, Essex, excluding the studio-based interior sets of the Entertainment staff chalets, offices, and milk bar. In a likely parallel to the eventual fate of the fictional Maplins Holiday Camp, the real Warners Holiday Camp would later be demolished and replaced by housing.
Bert Green is the oft-mentioned - but never seen - resident cordon bleu chef at the camp. Miss Cathcart, Peggy's boss, is also unseen despite regular mentions.
Barry Howard ("Barry Stuart-Hargreaves") became increasingly unhappy with his character as the series progressed and began drinking heavily. By 1986, these problems (and some 'inappropriate' behaviour on-set) led to him being written out and replaced by Ben Aris playing a former lover of "Yvonne Stuart-Hargreaves".