I guess that the first question is whether you are actually getting HD stations through your cable or are they just SD? I have Comcast cable. The SD channels look good but the HD channels have the WOW factor.

You probably will need an outside antenna for good over the air reception.

The Rat. M80s, VP-150, QS8s, SVS PC 20-39+, OPPO, Onkyo 703s, Harmony 880 Sony 60" SXRD HDTV