The Last of the Australians was Crawford Productions' first attempt at a sit-com since Take That in the 1950s, and one of the few Australian sit-coms filmed in front of a live studio audience.
The script was based on Alan Seymour's play The One Day of the Year, which explores the clashing attitudes of a father and son towards Anzac Day. As Don Storey notes in his Classic Australian Television:
Seymour has been approached several times for the TV rights to the play, and he refused all offers, including one from an American film company. However, when scriptwriter Terry Stapleton approached him on Crawford's behalf, Seymour agreed to sell the rights. This was because scripts that Stapleton had prepared were given to Seymour, and he was pleased with the way Terry had handled the character interpretations.
The sit-com is centred around the characters of Ted Cook, his wife Dot, and his son Gary. Ted is a World War II veteran of strong conservative principles, frustrated by the direction in which modern Australian society is moving. Gary is a teenaged university student of strong liberal principles, his father's antithesis. Despite the fact that the show drew its tension from the clash between father and son, it preserved a strong degree of affection between the family members.
Storey emphasises that Terry Stapleton wrote all episodes himself (barring one collaboration with his brother Jim), and concludes 'The Last of the Australians is cleverly written, very funny, and, being made during the tenure of the Whitlam Government, contains many interesting political references. The acting and direction is superb, and there is no irritating canned laughter'. Similarly, Moran, in his Guide to Australian Television Series, describes the sit-com as 'a very likeable and funny comic inversion of the Seymour play'.