I've recently purchased a HR10-250, the HDMI port works great! I watched a HD PPV movie that was still on the list looked great! I still have the round duel LMB dish but was only interested in the OTA HD recording and the extra storage anyway. I've tried two antennas so far (a used Terk55 and a new HDTVa) and when I goto the OTA signal test it shows "0" for every channel. I'm 99% sure I have it connected properly. Please help!