I just hooked a OTA (CM4248 w/preamp)to my SAT-HD100 and Walla!!! I am receiving from Mount Wilson Ch.2,4,5,7,9,11,13,22& PBS all with 80` 90` units of signal strength, the only issue that I have is that PBS even when signal is locked @ 88 units signal drops very often specially on fast motion video, I know that I am lucky to get any of this DTV channels here in Camarillo so I am not that disappointed with PBS but the HD demo looks amazing when is on !!!Text