Several special radio broadcasts took place in the 1940s including Winston Churchill's speech from the House of Commons in Ottawa. By mid decade, a number of private radio stations were affiliated with the national network and a total of 43 hours of French and English programs were being broadcast daily, compared with 10 hours just a few years earlier in 1936.
As the next decade approaches, television is on the horizon and CBC/Radio-Canada is preparing for it. In 1947, the Corporation presented a 15-year plan for the development of television in Canada." Source: CBC Radio-Canada