A soap opera set in the fictional Waratah High, Class of '74 was Grundy's first excursion into what would be their most successful genre.
Moran, in his Guide to Australian TV Series, notes
If Cash-Harmon had properly initiated the modern soap opera on Channel Ten two years earlier, it was the genius of Grundy's to recognise that a young segment would be a vital part of the overall audience for soap opera. By originating a serial at Waratah High and by concentrating on the older school kids as much as teachers, parents and other adult figures, Class was including what would be a vital element of the genre.
'High school education underwent a radical change in Australia in the 1960s and 1970s, commensurate with the major changes experienced within other institutions and social environments. This article is an exploration of Australian television’s use of the schoolroom within drama during the 1970s, with a focus on three productions: 290 half-hour episodes of Class of ’74/’75, 39 hour-long instalments of Glenview High and a pilot for Jackson High, a one-hour show that was not developed but which proved to be a forerunner for Glenview High. The article demonstrates that such shows provide insight into attitudes to both schooling and to teenage life in Australia in the 1970s, as well as being in themselves important and engaging examples of early Australian television drama.' (Publication abstract)
'High school education underwent a radical change in Australia in the 1960s and 1970s, commensurate with the major changes experienced within other institutions and social environments. This article is an exploration of Australian television’s use of the schoolroom within drama during the 1970s, with a focus on three productions: 290 half-hour episodes of Class of ’74/’75, 39 hour-long instalments of Glenview High and a pilot for Jackson High, a one-hour show that was not developed but which proved to be a forerunner for Glenview High. The article demonstrates that such shows provide insight into attitudes to both schooling and to teenage life in Australia in the 1970s, as well as being in themselves important and engaging examples of early Australian television drama.' (Publication abstract)