Hi all - I recently upgraded to dish's hopper system (few weeks ago), and ever since, I've been unable to pull in ABC HD OTA (have an attic antennae). I'm able to pull in all the other local HD channels (Charlottesville, VA). Anybody have any idea why this might be? Thanks in advance for any...

Hi - I have dishnetwork with a VIP622 DVR and HD and locals programming. I just installed an antenna in my attic to pull in the locals in HD (although I believe only NBC here locally is broadcasting in HD - the others seem to be broadcasting digitally). I am able to pull the channels in, but...