Once upon a time, not so long ago, a bunch of small companies in Silicon Valley thought the future of television was theirs. Soon, the thinking went, TV would be everywhere. Frequent fliers would tune in on laptops and vacationers on tablets from the beach.rnIf so inclined, you'd be able to watch Glee on a cell phone in a tree house. The network suits and the cable guys just didn't have the digital chops to make it happen. Fueled with venture money, tech companies with names like Boxee, Roku, and Sezmi pursued their dream of untethering viewers from their TV sets-and owning a piece of the advertising revenue.
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