Last night I was watching something Sling TV and suddenly the screen went black. I could hear sound but no picture. My Premier+ is attached to my receiver. I tried switching to other sources on the receiver (TiVo, DVD, etc. and nothing displayed). Tried bringing up the TVs setup menu but even that did not come up although that ruled out the receiver and the HDMI cable to the TV. The only solution was to unplug the TV and plug it back in after a few seconds. It later happened a second time and was cured by unplugging the TV.
The rest of the evening I watched TV with the TiVo and some from my Cable box (which is going soon). There were no more incidents.