I use subtitles becomes sometimes I have trouble understanding the actors. I believe I read something that suggested that the sound mix in movies and cinematic TV shows has changed a lot in the past couple decades, and a result is that it's harder to understand dialogue.

I don't like this; I find my eyes spending more time than I'd like on the text, and not enough on the visual imagery on the rest of the screen. If I truly wanted more text, I'd just read a book.