I have an HR10-250 with 6.3a and last night I started having an issue with NBC 11-1 ( in Atlanta) . It was pixelated and very garbled. This morning it was the same. This only happens on NBC so I figured they were having issues. Still the same this afternoon so I went into setting and checked the signal strength on NBC ( Digital channel 10) and I found something strange. Ant tuner 1 was between 0 - 40 it was bouncing all over the place. Ant tuner 2 was steady at 95. I ran the test on all channels and this only happens on NBC. What can cause this? So I switched tuners and NBC works fine, switched again and it went to crap. P.S. This happens on 11-1 and 11-2 and a reboot didn't resolve it.