Works in a macroeconomic model, but probably won't happen.
The cable company has no real competition, so no incentive to lower their prices.
Same with Dish/DirecTV. They aren’t competitors they are partners. There was talk of a merger a while back.
Over-the-air broadcast TV could possibly go Pay to Play with a setup similar to the satellite companies, or an additional circuit added to all new TVs that decodes a key code to allow you to watch. Connect it to the Web and they can meter it just like your electricity bill.....................