A survey by non-profit Conference Board released Tuesday showed that nearly a quarter of U.S. households now watch television programs online. That's a 20 percent boost in computer TV watching over last year. The quarterly Consumer Internet Barometer survey found that news shows were viewed by 43 percent of online watchers, followed by the 35 percent who watched sitcoms, comedies and dramas. Slightly less than 20 percent viewed reality shows online, and 18 percent favored sports. Viewership of the Hulu online service -- which offers shows from NBC, ABC, Fox and others -- nearly quadrupled from last year, but that's not a big surprise because Hulu didn't debut until March 2007. The survey found that 90 percent of online viewers watch at home. The remaining 10 percent watch at the office. 