5. TV Everywhere

So you thought you'd be able to watch all your favorite shows online and get rid of your cable subscription for good? Not so fast!

The cable companies have a cunning plan: They'll let you watch live TV, plus on-demand movies and TV shows, on your connected devices if you keep your cable subscription. Dish Network, Time Warner and Comcast are among those offering the service.

TV Everywhere has been buzzed about since 2010, of course, and could be a dud -- but the rise of tablet devices would seem to create increased demand for a "TV in your hands."