Nvidia Shield correct settings with SPMC on Vizio M series?

Hi all – having a lot of issues trying to understand what the best settings are for my Nvidia Shield, SPMC, and Vizio M series (2016) in terms of color output, refresh rate, the acceleration options. There’s a ton of info available and I’m pretty confused.

Can anyone tell me what SPMC hardware acceleration settings I should use, Nvidia Shield color scheme and refresh rate I should use, and if I need to do anything on my Vizio m65-d0. I would really appreciate some guidance here!

-Mike M.