I think cable companies are required by the FCC to carry your local over-the-air DTV broadcasts on their network. If your TV has a digital tuner that supports clear QAM, you should be able to get your over-the-air DTV channels through your cable. If not, or your TV doesn't support QAM, your best bet would be an external DTV tuner that plugs into your TV's VGA or component jacks: http://www.newegg.com/Product/Product.aspx?Item=N82E16815260022&cm_re=qam_external_tuner-_-15-260-022-_-Product
Thank you for your response. Yes - It's true the cable companies are required to do that. However I live in an RV Park who furnishes the Cable. They pay only for the channels that they want to give to there tenants. They have no DTV hooked in to their system.
However your suggestion about an external DTV Tuner sounds very helpful and I will look into that. thank you so much. Bill