[FreakinSyco]

Optimal is: not converting anything.

In your case:

xrandr: Full (*) _or_ Video Range 16:235 (only available in LE and OE) not to be confused with Limited 16:235 xrandr setting
kodi: Use Limited

TV: Needs to be in limited Range

*: Some TVs switch to Full range and don't allow tunneliing of Limited Content in that full range as they check the info frames, for those TVs especially this "Video Range 16:235" was made.

Edit: In your Full + Diterhing path you get nice colors, too - but WTW and BTB won't be working anymore.

Disclaimer: All that above only makes sense with EGL kodi

Alright I think I understand better. All video content is limited. So using the "limited" setting in the Kodi GUI leaves the content as it is. I then have xrandr set to full and my TV set to limited. Thats the optimal path? And your note about EGL: LibreELEC on Kodi v17 includes EGL correct?

Thanks as always.