It has been discussed quite a few times in several discussions here, I bet you can find them using the forum search!
As far as I remember: Most TVs have problems with RGB Full, since they are not PC Displays but playback devices for videos and therefore video legal (limited) should be used.
Off course, thats why the TV was on Limited RGB
ok, l do a calibration to my oled with nvdia output RGB full 4k 8 bit, and the results comes pretty nice, gresycale 0.9DE and colors 1.9 DE.
now, if i use those settigns with my fire stick TV, who probably its outputing YCBR because its supperts upt o 12 bit to do dolby vision, will the calibration still accurate?
l mean it cant be THAT off target no?
also i wonder if the fire stick still output RGB whatever a SDR video its been playing...