About 15 - 20 minutes ago (1:45 am EDST) most of my local HD channels went down. A couple are still on but most are not. I enabled SD channels and they are on. The HD Channels that are down are all black, no 771, no message from Directv or anything else there. I am in the Charlotte NC DMA. 3 9 14 18 30 36 46 are all black on HD, SD is working. 42 55 58 58-2 and 64 are working on HD and SD. Anybody got any idea what's up here?