Start by changing who can see ... Look for a setting called “HDMI Deep Color” or similar and make sure it’s enabled, then try enabling HDR again on your PS5 console. If you have an OLED ...
When you connect your PS5 to one of the best TVs – or even my more modest Samsung TV – and play in HDR the results can be stunning; I often paused Horizon: Forbidden West to gasp at the graphics.