TV networks open labs to read the minds of viewers

By Jessica Toonkel NEW YORK (Reuters) - TV networks are trying a new tactic to understand what shows and commercials people like to watch: read their minds. Comcast Corp's NBCUniversal and Viacom Inc are each opening labs where they will study TV viewers in mock living rooms filled with infrared cameras tracking their biometrics – such things as eye movements and facial reactions made while hooked up to skin sensors and heart monitors. Viacom's lab, which is being built in New York, will i