For the last couple of weeks we keep losing our signal on our OTA channels on the two TV's with Dish, but not the tv not on Dish. I was wondering if any of the Dish apparatus have failures that can cause this intermittent signal loss. It happens on 2 channels facing east but not on 1 that is facing east and in the same general area. I have moved the antenna all around checking the signal strength on the Dish settings and the strength may go from 100 to no signal and then back to 100 within a few seconds. I'm sure the obvious answer could be tree problems which is possible but we have had these trees for many years. Some say solar activity could be a problem too. I'm sure you lose signal at every connection so I guess that is a possibility as well. But is there anything that could go wrong with the Dish system. Thank you, Larry