Be sure you have installed the driver. If you are using windows 7 you still need to install the winTV driver. I know this because I had the same problem. It should work then. Just go to TV setting in the media center setup and it should scan for channels.
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Be sure you have installed the driver. If you are using windows 7 you still need to install the winTV driver. I know this because I had the same problem. It should work then. Just go to TV setting in the media center setup and it should scan for channels.