I have a Roku Ultra that is playing my channels with a green screen/video breaking up effect. The only channel not affected is Utube which plays videos well. I do receive audio still on my channels. My internet connection is excellent and I have reset my Roku as well. I have even moved the Roku to another tv with the same result. Any help would be appreciated.
Have you tried a different HDMI cable?
Yes, I have tried a different hdmi cable. The one I had been using worked well but I did try another but with no luck.