To reiterate what I said in THIS
I don't trust a consoles picture viewer or their web browser, simply because I can't control it, so I don't recommend making a decision based on what you see this way.
For gaming consoles, there is an easy way to tell which black level is correct for your display.
Set the console to full rgb. Load a game that has a black loading screen.
Make note of how "black" this is.
Switch your DISPLAY's black level to the other option, and check that loading screen again.
Is the black of one brighter than the other?
If yes, use the darker of the two on your display. Wrong option here means picture is washed out.
If both are the same, then use the one that looks brighter *for everything else. Wrong option here means picture has black crush.
Originally Posted by Dominic Chan
Originally Posted by CaptainFelafel
My TV doesn't actually have any options for changing its RGB capabilities, which is why this is a problem in the first place for me. But seeing as I'm having to change my brightness when changing the range on my PS4, it very much sounds like my TV is limited to... limited.
If your TV does not provide the range option then it's almost certainly limited.
To add to Dominic Chan's post, if a display has a "PC" picture mode or setting, this SHOULD be full range RGB (0-255). Another benefit is these modes usually have 4:4:4 chroma.