8 bit h.264/265 videos play just fine on both PC and TV without display issues. However, 10 bit, HEVC videos display darker scenes as overly dark, and and brighter scenes as overly bright, on both PC and TV - Samsung Q60A QLED. This is the relevant FFProbe output:

Code:
/ffprobe -v error -select_streams v:0 -show_entries stream=codec_name,profile,pix_fmt,color_range,color_space,color_transfer,color_primaries,side_data_list -of compact=p=0:nk=1 input.mkv
Output: hevc|Main 10|yuv420p10le|tv|unknown|unknown|unknown

I could recode with FFMPEG but would appreciate advice on what parameters to encode for and any other advice.

Thanks.