not that many stations are broadcasting in 4k right now trust me there are alot more coming this year and next year give it some time and there will be alot coming soon
i understand what you are talking directv this weekend will be broadcasting one of the holes The byron nelson golf touranmet in 4k.to be honest with you i do not know when dish will start getting channels in 4k just not that many are broadcasting in 4k right now.
No they never found anything wrong so for now I just live with it. I guess at this point it must be the combination of 4K upscale and OLED that brings out the worst in any lower quality video.