Bingo. Some HD channels on Dish are barely watchable such as NatGeo HD. Pixellates all the time. (And no, its not my signal strength)
I have no channels on Dish that are barely watchable.. Except of course for content on some of them.. But no issues with pixelation anymore than I have on my DirecTV system. Both systems have some issues with this. But none that make any channel unwatchable..