It seems as if whenever I need technical support, it takes days to resolve my problem. My dish keeps freezing up and tv screen turns black. I continually unplug, reset etc. I spent a couple hours on the phone with dish last night with no good results. This happened a few months ago, eventually they sent a new receiver after many calls to them. In the meantime I am unable to view shows. I was a long time direct tv person and never experienced this. I have a busy work schedule and don't have time to spend my evening's on the phone with dish and getting no positive results,
You might be having problems with the LNB on the dish. Usually when you get a pic freeze, it indicates that video will be lost and you will get the 'signal lost' screen, like during heavy rain. The receiver maintains a 13 to 19 volts [24/7] to the LNB. If it is not receiving the voltage or the LNB is going or is bad, you get nothing on the TV screen.
I use an antenna for locals. I receive a medium to strong signal from all channels. But who knows for some reason, once in awhile, the signal strength meter drops to zero on a channel and the TV shows a black screen with a 'weak or no dignal' pop up.
CB, I hate to hear that you have had this experience. You mentioned that we sent you a new receiver. Are you still experiencing the issue with your TV freezing? If this issue has not been resolved, we can take a further look into this for you.