I just bought a Vizio P75-F1. I connected it to my Marantz SR5008 via HDMI which is also connected to my Hopper 3. I can view the basketball game that is on right now, but my Vizio says it is 1080i. The H3 resolution is set to 4K, 1080P, 1080i. I tried turning off the AVR (it is set to 4K pass-through), but get the same results. Am I missing something?