Radio spans the world to link the cities of Sydney, Toronto, and London in a series of general knowledge contests between school-children in Australia, Canada, and the United Kingdom
London team: Sally Green, David Seymour-King, Allan Ronald
Question-Master, John Ellison
Sydney team: Ruth Kronenberg, Nigel Starr, Robert Day
Question-Master, John Dease
Questions set by Roy Smith
Producer in London, Joan Clark
Producer in Sydney, Hal Lashwood
(Broadcast on May 22)