New York - CBS (NYSE: CBS) said on Monday that its March Madness On Demand video player drew 4.7 million total unique viewers, and streamed 4.9 million total hours of live video during the NCAA men's basketball tournament. The number of unique users was up 164% over last year's 1.8 million, but 2008 was the first year that CBS offered all 63 games of the tournament live online, and without local blackouts.