I currently have a cheapo wireless N card in my HTPC with a QAM Tuner (hauppauge tuner). Recently my cable company upgraded to a digital signal. However, when I am connected to my router's wireless connection, I will get noticeable interference and artifacts in the picture on certain channels.
Once I disconnect, the interference goes away. Immediately when I hit the "connect" button on the Win 7 connection window... the interference comes right back.
Perhaps I need some shielded cables or something? Does anybody have any ideas how to fix this?