Switching to Roku ultra results in greenish or pinkish screen
I have a Denon 4700h avr and a Sony A80j TV. When I use the Denon to switch from Frontier satellite TV to the Roku ultra, I often get a weird display on my Sony A80j TV. The screen displays a pinkish or greenish pattern. I would post a picture, but I don’t see that option. If I switch back and forth several times, the Roku sometimes syncs up. Often, though, I have to unplug the Roku’s power cord or hdmi cable to get The Roku to work. The hdmi cable isn’t the problem. I’ve tried several hdmi cables. My guess is that there is a “handshake” problem, but I don’t know how to fix it. When I switch back to Frontier satellite, there is no problem. The problem is switching from satellite to the Roku ultra. Any advice would be much appreciated.