Transponders 6, 8, 14, 16, 22, 24, 30 and 32 went out sometime around 2:00 AM eastern time. I checked with my spectrum analyzer and they were actually out. This was not a guide update software problem as others had speculated.
Fox News and a couple other channels have temporarily been relocated to another transponder.
Now, here's the good news, sort of. I just checked with my spectrum analyzer again, and there is now discernible signal on all eight of those transponders. Most likely, DirecTV has acitvated its backup satellite and now must more the missing channels to it which they apparently are doing one at a time.
In fact, the replacement transponders are stronger than the transponders they replaced. They are stronger than any other CONUS transponder presently transmitting from that slot.