Box for our secondary TV has been installed since September 2014. Just last week we started to get a completely black picture and no sound when trying to watch live TV(any channel). The Channel Guide pops up on screen and let's me scroll through and change the channel but no picture or sound.
In addition, we ARE able to watch Recorded Programs on our DVR and also access On Demand content.
Does this sound like a TV issue, a Box issue or something else? I'm stumped. Have unplugged and reset both TV and box with no success.
Thanks!