But for three straight quarters, there have been declines in viewing among Americans under 35, even when DVR viewership is factored in, according to Nielsen data analyzed by The New York Times. Adults ages 25 to 34, for instance, watched about four and a half fewer hours of television in the third quarter of 2011 than at the same time in 2010 — the equivalent of about nine minutes a day. Viewers ages 12 to 17 also watched about nine fewer minutes a day. The demographic in between, those ages 18 to 24, watched about six fewer minutes a day. (Source)