Hughes DirecTivo HDVR2 receiver. I am getting severe pixelation on only a couple of channels: 230 (DIY) and 206 (ESPN)---there may be more, but all the rest that I watch are normal. I've checked the signal strength on all transponders and tx 4 and 20 read zero, 12 and 28 read about 30. All the rest are in the mid to high 90s. Both of the bad channels pixelate regardless of which tuner they are on. An additional note is that last night I tried to record 2 programs at once but the 2nd one would not "take". A reboot fixed that problem (for now), but the pixelations continue.