Bloomberg: Highly targeted marketing messages are taken for granted on the Internet. Yet, they are just now finding their way onto television. As brands shift more of their spending to the web, the TV industry is pushing back. Using data from cable set-top boxes and other sources, companies including Comcast, Time Warner and Viacom are trying to compete with web giants like Google and Facebook and help marketers target their messages to the right audience. “TV has to move in this direction.”