My TV is the LG CX. It's cool in some ways, but overall I'm not too impressed. Some days I think maybe I should've splurged and gotten a Sony.

Hmm, then the issue I could see if going by EQ is if there are several voices at the same time (say, background characters taking indistinctly behind a conversation), depending on how crap the mix is, trying to enhance voices might enhance the background ones as well.

That's an edge case, but a more common one is when there's music with sounds in the same frequency range as human voices over a scene and the music competes with the voices. Then playing with the EQ might distort the music in such a way that it still kills the voices while making the music inaccurate.

That's why I really wish we had several channels whose volumes can be individually changed like in video games. That would be the ultimate tool to adjust things. Even if you don't know anything about what the hell "hertz" means and equalizers confuse you, you could do a lot without distorting anything. And if you do understand how equalizers work, you could combine both to get a really fine-tuned experience.

The music tip isn't bad, but on my TV the answer is "you can't really do that" lol. There are various ways to distort a piece with sound profiles, but none that I know of to keep it accurate.

What I usually do is always use subtitles, and switch between "OLED Surround Pro", "Standard" and "Game" to see which sounds the best. Then if a movie/show stands out as having incredibly bad sound (ahem Christopher Nolan ahem) I either bust out the French dub or "enjoy" the tinny sounds of "Clear Voice IV".