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In page ZeD:

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In November 2001, CBC invited Canadians to come up with cheap but intelligent creative ideas in connection with the anticipated series "zed," and received 1,000 efforts.[3] When ZeD premiered on March 18, 2002, it was still considered to be in development,[2] and its first four weeks from March to April were experimental.[1] It was not advertised, except for CBC informing the press, since ZeD was meant to be discovered among viewers who would then inform other viewers. CBC was still hoping to attract contributors, and Hull added, "I'd be happy if people discovered ZeD and made their own decisions about it."[1]