Hi, which TV to choose lg 55c8 or Sony 49xf9005 or 55xg9505, I will watch in a bright room, for HDR and ps4 films, prices: c8 and xg 9505 are the same, xf9005 is the cheapest, only the picture is important.
XF90 and XG95 are similar in many ways. I think it's worth stepping up to 55". XG95 will be better suited for a very bright room as it has higher overall brightness but the LG C8 can be used in a bright living room, too, no problems. Of the three, LG C8 will deliver the best HDR due to its pixel-level luminance control.
We've saw some of the zone-dimming LCD monitor at IFA and it has only reinforced our believe that HDR is still a fata morgana in the PC ecosystem. If you want great HDR picture quality pick the LG C8.