'Australia's keen competitive spirit wherever international titles are concerned is famous--but perhaps few people realise that we hold at least one record in the radio fields. The veteran story of country life, "Dad and Dave," can claim to be the longest running radio serial in the world. It is also the serial with the longest period under the one sponsorship, handled by the one agency, made by the same production unit, and originating from the same station.' [Introduction]
Source: 'Dad and Dave - Australia's Longest Running Serial', Barrier Daily Truth, 16 Aug. 1951, p. 1.