Digital video recorders, or DVRs, were once thought to be the weapon that would kill advertiser-supported TV. After all, conventional wisdom asks: Who wouldn't simply skip past all of the commercials when watching a time-shifted program? Well, according to an article in The New York Times, a funny thing happened on the way to the funeral. Instead of killing off commercial TV, the DVR might be what saves it. Nielsen, the company that tallies up viewership for TV networks and advertisers, reports that more and more people are keeping their fingers off the clicker as commercials drift by when watching programs recorded on their DVRs.