The Argonauts Club was an Australian children's radio program, first broadcast in 1933 on ABC Radio Melbourne. Its format was devised by Nina Murdoch who had run the station's Children's Hour as "Pat". The show was discontinued in 1934 when Nina moved to Adelaide. The format was revived on 7 January 1941 as a segment of ABC's Children's Session and broadcast nationally except in Western Australia where the two hour time difference made a local production more attractive. From 6 September 1954 it was called the Children's Hour, running from 5 to 6pm. It became one of the ABC's most popular programs, running six days a week for 28 years until October 1969, when it was broadcast only on Sundays and was finally discontinued in 1972. The Children's Session Following a decision of ABC General Manager (later Sir) Charles Moses, the Children's Session was instituted as a national program by the ABC in 1939 by Frank D Clewlow who was then Controller of Productions (i.e. director of drama and light entertainment). His protegee Ida Elizabeth Osbourne was appointed as its first presenter, as "Elizabeth". When she married in 1952, and was forced to leave as was then Public Service policy, the position was taken by "Nan" (Margaret Dalton). The Children's Session was co-hosted from 1940 by London-born Scot Atholl Fleming, as "Mac" or "Tavish McTavish". His most durable co-presenters were the painter Albert Collins ("Joe"), then after his death the actor John Ewart, called "Jimmy" or "Little Jimmy Hawkins". The fourth member of the 'on-air' team was always female, again having an 'on-air' pseudonym. Some, perhaps most, are listed below. Theme music The Children's Session opened with the theme song by the Jim Davidson Dance Band, written by Elizabeth Osbourne with music by Wally Portingale: Come, Old Mother Hubbard and Jack and Jill And Tom the Piper's son Leave your cupboard forget your spill We're going to have some fun The wireless says to hurry and run To leave your games and toys; The wireless says the time has come For all the girls and boys. So come with a hop, a skip and a run, It's time for the Session, it's time for the fun." and the team would introduce themselves with some light-hearted banter in keeping with their 'on-air' personas, followed by entertainment arranged roughly in order of audience age. The Muddle-Headed Wombat The first segment for most