Radio spans the world to link the cities of Sydney, Toronto, and London in a series of general knowledge contests between schoolchildren in Australia, Canada and the United Kingdom
Sydney team: Ruth Kronenberg, Nigel Starr, Robert Day
Question-Master, John Dease
London team: Sally Green, David Seymour-King, Allan Ronald
Question-Master, John Ellison
Producer in Sydney, Hal Lashwood
Producer in London, Joan Clark
(Broadcast on April 10)