Dish Gallery 4K content not playing in 4K.

[edisonprime]

I have Dish Gallery and it seems to be working with the exception of having content that is labeled "4K" actually not playing in 4K. I double-check to verify on my actual TV remote by pressing "display" and depending on my Hopper settings it lists the feed as a lower resolution, such as 720p or 1080i (depending on my Hopper settings for the TV display). I know my TV is capable of doing 4K (as well as HDR and even active shudder 3D if for some reason you need to know that), and I know my HDMI cords are more than capable of doing 4K since they are actually 8K HDR cables. I've played around with my TV and my AVR switching HDMI cords around and unplugging power cords and HDMI cords and plugging them back in several different ways, including leaving them unplugged for more than a minute. My TV is a Sony XBR-65X930D and my AVR is a Sony STR-DN1070. Thoughts?