I think TVs and Projectors went a bit stale for maybe close to 7 years. This year is the start of the true next generation of TV's but even then id like the nits to be improved. The thing that annoys me is people buying these pox soundbars. It reminds me of Cadburys and how they reduced the size of their chocolate but kept the same price. With TVs we basically have no speakers. Im still rolling with a x900a 4k Sony from 2012 and love the big MTM forward facing. Had a demo of a Atmos Soundbar the other day...what a joke! Salesman (saleskid) was trying all the lingo and said ok lets hear it then lol. I think with anything AV it has to be tasted before you can appreciate and want to buy it. Ive had many people come through my theater since its been up and running and they all didnt understand what I was trying to achieve. After I load the Dolby Atmos demo disc and play Dolbys teasers they are amazed, wide open jaws dropped to the ground. I then proceed to load one of many of my 4k Atmos reference Movies just for some further scenes and they all go quite and get sucked into the movie and dont want it to stop. Ive had to tell people to leave. Lol. For me its 75 percent sound and 25 percent what I see, feel and ambience. I have spent a bit on my room but purely focussed on the practicle detail and none of the snakeskin oil. But the way I see it some people buy nice cars and drive only themselves to work and home in it 30 minutes a day. I spend atleast 3 to 4 hours a day myself with family and friends. I also dont have to go out and see movies at the theater and dont have the need to other than the true classics. I saw transformers the other day and it was in a non atmos 7.x cinema. I was so disapointed in the sound and even visually it was poor. I knew when I got the tickets it wasnt in the Atmos theater but it was down because of rain damage and I really wanted to see the movie even though MB has tried to ruin transformers for me. So I guess I save some money there. I just watched Ghost in a shell and sat there admiring the sound repeatedly yeah visually its great but I never thought that. Anyways got lost and babbled on there, I will stop now lol, sorry.
As Al said, you should only need to make adjustments in the display.
Full range video is 0~255 and sometimes the player limits it to 16~235. Test patterns like PLUGE (the brightness test on S&M volume 2 in video calibrations) will allow you to see if your player is passing the full range signal. Some displays do require you to set the range to "full". Some projectors have controls like "superwhite" and this often limits the range of the video signal.
The ONLY thing that requires adjustment from the player is the video range and for this, you MUST use a test pattern. You should never be adjusting your display on the fly based on actual program. If you suspect a transfer is not correct, you should set up a new user mode and make adjustments to that, using reference patterns.
There are some documented cases of incorrect video transfers and one of the best known is FLASH GORDON where it appears they mastered this with a gamma that is too low. The disc has its own brightness/contrast pattern and to adjust for this, so I copied my calibration settings to another user mode, then made the adjustments to that. It looked pretty good, but too bright on the normal mode.
Blu-ray is SDR 8bit and therefore you don't want to see below 7.5% or PC values of R16:G16:B16. On the S&M brightness pattern, you have 4 bars and two checkerboards on a video black back ground. You only want to see the +2% and +4% black bars.
Sorry I only have this HDR-10 brightness pattern on hand, but you can see here that "reference black" is 7.5% the same as video black in SDR video.