That screen stating they are aware or the problem and "don't bug them," is actually generated from the BOX and not from Dish via satellite. On a rare occasion this same screen appeared to me while on an LIL, but I found that I have to tune to another channel, then re-tune to the "problem" channel in order to get video and audio again. If I don't do anything, the stupid screen will stay there--well, it seems, FOREVER. The real problem is that it could be a lost signal or hiccup on your box that just occurs for a second, and the "don't call us" screen pops-up, but it seems, in my experience, it won't go away by itself and display the video and audio when all is well. You must tune to another channel, then re-tune to that c"problem" channel.
I stumbled across this when I got the stupid screen on my TV, but mom was watching the very same LIL on her TV in the next room with no problems. I had to tune, then re-tune for all to return to normal.
Others on this board have confirmed that it is, indeed, the box that generates this "don't call us" screen. Kind a stinky.