Oh man, I think I had my settings on my Shield TV wrong all this time for my Panasonic 65VT60 Plasma. I had nonstandard color range set on the TV and full range set on the Nvidia Shield, but I don't think the shield was sending the latter or something. I instead went in and just had it send YUV 4.2.2 which worked and the picture is fucking glorious. I now have a setup to turn off my room's lights with voice control, bias lighting behind the TV that is powered by the TV and only turns on with the TV, and a 17 x 17 room only dedicated to my TV, home theater speakers, and computer desk (coming from a small apartment). Fucking glorious picture, now I really understand what people meant by the deep blacks this set was capable of. Now I'm finally getting something closer to my beloved Kuro.
VT60 has
As a plasma the best motion resolution you are going to get on a flat panel that is only bested by a CRT. LCD and OLED can't compete.
No crushed blacks at all and they go DEEP and show all the detail
No stuttering
Incredible color
More than adequate light for watching in the dark
Doesn't have:
4K
HDR and light that gets eye searing
Absurdly low ms, but I've been more than fine with the levels it gives me on gaming mode