TV: Panasonic 65HZ2000 OLED, prof. calibrated
Device: Apple TV 4K 2021 fully updated (tvOS 15.1.1 )
Settings: Match framerate and range, but otherwise in SDR (set by calibrator, looks better in menus), i also tried making Dolby Vision default with no impact.
I was watching the Hunger Games trilogy (bluray rip) and a few times I was surprised at how it was mastered, with blacks seeming a bit too gray, but otherwise looking great. Basically scenes which I would expect to be near-black was much brighter than the black bars. Finally, when watching the tunnel scenes in Mockingjay Part 2 I figured something was wrong and compared with the regular HD streaming version on HBO Max. The same scenes had much blacker darks in the standard HD version.
I tried to take some photos at fixed ISO for comparison:
( no rewards for guessing which is one with raised blacks ).
I am seeing the same behavior in both Plex and Infuse (playing from plex, which is set to direct play).