I get intermittent pix. issues only the < 100 channels.
I had it before the c rev of the software and before the drive upgrade.
However, the b rev of the software made it MUCH better. I think possibly the signal is coming in too hot or maybe there was a signal strength issue b/c when I looked at the diagnostics page my signal was going from 100, 90, 50, 100, 60, 75, 90, 100....
It was bouncing all over the place. However, there was bad weather where the signal comes from, so it might be that. It's calmed down significantly since then.