I did the same thing Matt and I'm getting getting ready to do it the old fashioned way and put it on the roof. I started out with a $15 set of rabbit ears and a DTC-100. I was amazed that I was able to pull in 3 of the 4 local HDTV channels with the rabbit ears most of the time. So, I thought I'd buy the biggest antenna like you did and put it in the attic. Well now I only get two HDTV channels consistantly, but there was a major improvement on the VHF channels I must say.
BTW - Bet. The HDTV reception is digital and as soon as you have a strong enough signal to get a picture it is crystal clear. It is clearer than even the HDTV channels off the satellite. You will probably never get as good of a signal off the satellite because they won't allocate the bandwidth for it, they make more money off of selling more channels - not better ones. HDTV off of cable - not going to happen any time soon.
