When I turn on my receiver, it turns on my uverse box, blu-ray player, and roku streamer. This all worked seamlessly for several years. Then recently, when I would switch to the blu-ray HDMI input, the receiver would turn off. I switched the cable, same issue. I switched the HDMI port, same issue. Bought a new blu-ray player, same issue. So I think it is in the receiver. But I learned that if I would let the receiver 'warm up' for a few minutes, then I could switch to the blu-ray, and it would work fine. Recently, this same issue started with the uverse box and the roku streamer. So I am wondering if the receiver's HDMI input 'processing' is failing across all of my HDMI ports? Is that even a thing? Any other ideas? Thanks in advance!