I have a Hauppauge Dual Tuner card in my Media center pc. The problem is that I am not able to receive QAM channels on my Home theater system. I had connected it to my TV antenna to catch the un encrypted QAM channels. But it is not reading any of it. How can I make it to receive the QAM channels. There is no broadcasting issue because other guys are getting the same channels which are not available on my home theater system. Any suggestions really appreciated.