As mentioned a number of times already, this same debate happened when Television started to become more popular. People wondered why anyone would want to just hear a story when they could also watch it. This is when radio companies came-up with the idea of putting a radio in the car so that people could listen to music while driving.
So in short, as long as there's a huge company making a good profit off of an item, they'll make sure they find a way to ensure that the product continues to be profitable. So as the internet becomes more and more popular, television companies will continue to think of ways to get people to watch TV instead of watching it on the internet.