There was a recent post on thegreenbutton.com forums with information on how to get QAM channels in Windows Media Center with the AVerMedia AVerTV Combo PCI-E x1 TV Tuner.
There are beta drivers and a small application to get it working. I just tried it and I am getting 16 QAM channels in Media Center. The one problem is that these beta drivers are causing Media Center to crash (only when viewing QAM channels) after about 15 minutes. Others may have more luck then I am having. It looks like the HDHomeRun will not be the only piece of hardware for QAM in Media Center anymore.
Link to the post with beta drivers: http://thegreenbutton.com/forums/7/217353/ShowThread.aspx
There are beta drivers and a small application to get it working. I just tried it and I am getting 16 QAM channels in Media Center. The one problem is that these beta drivers are causing Media Center to crash (only when viewing QAM channels) after about 15 minutes. Others may have more luck then I am having. It looks like the HDHomeRun will not be the only piece of hardware for QAM in Media Center anymore.
Link to the post with beta drivers: http://thegreenbutton.com/forums/7/217353/ShowThread.aspx