PC World – Despite all the hype about televisions’ being turned off in droves in favor of Hulu and YouTube, live TV remains easily the most popular entertainment meÂÂdium (just look at the ratings for American Idol or CSI). Still, in an effort to reach the iPhone generation, the broadcast industry is pushing Mobile Digital Television (Mobile DTV), a technology that lets you watch TV programming while you walk in a park or ride in a car barreling down a highway.