My baby got a hold of the remote this morning and now some channels have no sound, is there a way to mute the audio for individual channels? The sound is fine on my other receivers.

I am in the Raleigh, NC area. What type of dish will have to be installed so that I will receive programming? I will have a Hopper and a Joey. Of course this is an HD DVR. Will I need 1 dish or 2??