By ANDREW VANACORE, AP Business Writer
NEW YORK – For more than 60 years, TV stations have broadcast news, sports and entertainment for free and made their money by showing commercials. That might not work much longer.
The business model is unraveling at ABC, CBS, NBC and Fox and the local stations that carry the networks' programming. Cable TV and the Web have fractured the audience for free TV and siphoned its ad dollars.