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CHUM Limited was a Canadian media company based in Toronto, Ontario in operation from 1945 to 2007. The company was founded in 1944 as York Broadcasters Limited, launching CHUM-AM 1050 the next year. It was acquired by salesman Allan Waters in 1954. CHUM expanded to and owned 33 radio stations across Canada under its CHUM Radio Network division (now Bell Media Radio)

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