My Vizio D series 50" 4k tv doesn't upscale anything to 4k unless it is in 1080p. Says it in the directions I got with the tv. So no upscale on DISH or even ota or analog cable plugged into the tuner. My DISH sat signal shows only 1080i. Now the Netflix app on my hopper 3 is in 1080p ,so it goes right to 2160p upscaled when I use it . The only time I can see DISH in 2160p is when I select multi view 4 screens and then it will show 2160p on the tv. The Philips 4k tv I had before this ,that I sent back to Sears for credit, did upscale everything to 4k resolution ,even the ota tuner. So this Vizio tv is not as good as the Philips ,except for picture quality and flesh tones. The Philips had horrible colors and I could never get the ambient light sensor to work correctly. It was either to dark or I would turn it off and then the picture was to bright. No middle ground. That is why I gave up after a month and sent it back to Sears for credit , that I am still waiting for .