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The History of NbcEssay Preview: The History of NbcReport this essayThe History of NBCNews Channel 4 signed on the air as WNBT on July 1,1941, at 1:29 p.m. This historic event was the beginning of commercial television in the United States. At 2:30 p.m. the same day, WNBT again made history when 4,000 television sets.