I have the Samsung KS8000 and the PS4 Pro. I was getting random black screen dropouts when playing Minecraft. I checked all the cables, unplugged everything else from the tv, rearranged my power outlets thinking maybe it was power related.
It didn't happen again until the next day so I started changing output settings. Once I turned the RGB settings from Automatic to Full it seems to work for a while. Last night while playing bloodborne I had it blank out twice. I will now try the YUV420 to see if that works.