Here's a scary thought. One day, you might have to actually pay for all that free quality programming beaming through the magic picture box in your living room.

A scary new article by the Associated Press shows that advertising revenue has not provided enough income for the free networks to support all of their programming efforts. And thanks to the rise of cable and the web, some companies are considering new business models that are cutting the "free" out of "free TV."

Given the way things are going, do you think there could come a time when free TV is a thing of the past like top 40 AM radio, Olestra chips and an ozone layer?