Tablets will be in almost two-thirds of U.S. households by the end of 2017, the devices are expected to account for 10% of all current TV, video and OTT consumption, or 58 billion hours, according to a report by The Diffusion Group. "This will create major new opportunities and challenges for content providers, TV networks, multichannel operators and advertisers. These companies need to be actively exercising their tablet strategies now, not later," said TDG senior analyst and report author Bill Niemeyer.