A pilot episode, "Regan", was made as part of the Armchair Cinema series and shown in 1974. In all, four series were made with Series One being broadcast between January and March 1975 and Series Two following between September and December of the same year. Series Three was broadcast between September and December 1976, with the final series being shown two years later in 1978. Two 90-minute feature films, Sweeney! and Sweeney 2, were released in 1977 and 1978 respectively, between the third and fourth series.
