LG Oled picture in HDR Mode goes out

Go with the OLED, the Samsung is nothing more than a fancy LCD but it still has all the flaws of LCD technology.

OLED HDR blows away everything else on the market, they cannot compete against it.

Tip: On LG OLED in HDR game mode set HDR dynamic contrast to low to make it appear a bit brighter.

Can't help you there, but my scorpio doesn't even detect HDR on my LG EG9600 (2015 model; has HDR on netflix streaming perfectly; I selected Deep Color in settings). Still get 4K, but can't even get HDR to work. And my LG TV is the OLED mode if that has
anything to do with anything.

It is all personal preference, go view some in a show room to see what you prefer.

I've got an LG OLED and the picture is fanatic, also supports both HDR and Dolby Vision.

I have this issue as well, but only when HDR and YCC 4:2:2 is enabled in the video settings. My TV is LG OLED B6 and goes trough an AVR, Denon x1400H, not using ARC.

I would recomend lg sony oled tvs supporting latest hdr including dolby vision