After being advised that cable was changing over to all digital signals and that older TV's would have to have an adapter to receive these channels, I wen out and bought a nice Samsung HD flat screen for my kitchen. I assumed that because this TV was able to receive digital signals, I would not need the adapter. I pay for HD service and have a DVR on other TV's in my home, but this one is only for my kitchen and I really don't need movie channels, so I don't need a box. I hooked up the TV without the adapter and I received all my local stations as well as others in both HD and STD. GREAT!. Then I realized I was not receiving all my cable channels. Called COMCAST and the said I must use the digital adapter. So I did, but what I got was all STD broadcasts! All the standard HD channels that the local stations broadcast and that I was receiving were blocked! What a scam!!! The only way to receive the HD local channels and get the channels you are already paying for is to pay for another HD BOX FROM COMCAST!!! What a way to rip off your customers!!! Since I only want to watch the news in the kitchen, I threw the digital adapter out and plugged the cable straight into the TV. I get a better picture and can watch local stations in HD WITHOUT PAYING COMCAST FOR IT!!! THE FCC SHOULD LOOK INTO THIS...THIS IS FRAUD IN MY OPINION!! It's just a way to get more money out of people already paying a fortune for cable service