What are you opinions on the 4K upscaling of these AVRs?
I have an X4200 and using the upsclaing to 1080P for my plasma TV. I am planning to get a Samsung 8000 series or a Vizio P series. The Vizio has some nice picture features that I want over the Samsung but per reviews, it has poor upscaling of any content below 1080P. I watch streaming and DirecTV content which has some 720 and 1080i content, so that less optimal upscaling of the Vizio would be a disadvantage to me, but if my Denon's upscaling did 4K well, then that would be moot because I could just use the Denon to do it. Since I do not have a 4K TV now, I cannot test it (but again the 1080p upscaling looks good.)
Anyone use or test the Denon's X series 4K upscaling? Opinions?