Streaming video technology and broadband speeds have improved to the point where watching live TV online can be almost indistinguishable from the real thing, which is one reason why many people have cut ties with their cable TV providers in recent years. But if those cord-cutters — or any DirecTV subscribers who happen to be away from home — want to watch all of the NFL playoff games online this month, they’ll need to get a friend’s cable company login. [More]