Beyond simple logic, there's also a strong business reason to widen the platform. To date, second-screen applications have generally failed to deliver meaningfully large audiences. For sure, there are exceptions: some shows have attracted large followings for their second-screen apps. But those shows are the exceptions and there are now many reports of companion apps generating audience engagement rates of less than 1%. For a TV industry based on reach, sub-1% audience participation will not translate into continued investment in companion content.
First screen to the rescue? Well, sorta. First-screen content apps have historically fared far better. Audience engagement rates on older, more limited platforms have frequently reached high single digits. One programmer reports historical results of 8-22%. Recent tests of apps on the smart-TV platforms have shown mid- to high-teens for engagement rates on syndicated content that had sub-0.5% engagement on second screen.