Just a quick question on clear QAM channels (not sure I fully understand it). I have the basic 11.99 cable package from Comcast, which gets me 2-22 and their HD equivs where available. Right now I have cable cards, so CBS SD is channel 4, and CBS HD is 804. I connected my cable directly to my digital TV and did a channel scan, and CBS came up as 4, and CBS HD came up at 4-1. It's like this for NBC (7, 7-1) ABC (5,5-1) and Fox (13, 25-1). Does this mean Comcast is properly mapping the QAM channels, and I have no need for cable cards? If I take the cable cards out, will I get valid guide data for the channels above?