Andy, in your particular case, you haven't even had any inspection of your installation by a professional and I haven't seen you post where you did check out a retailers showcase to see if they had the same issues. This could very well be a kinked or hammered cable at your house causing these issues, but you want to drag up old threads where people whined about PQ and automatically assume its a problem with Dish since a few out of millions have said they have the same problem. So how about you get some BER readings from a competent tech with the right tools and post them here. While your at it, try a different receiver so we know it isn't a bad box and then we can cry on each others shoulders.
If I recall, the OP of this thread was kicked out for flooding the forums. Andy, you are doing the same thing.