I have my TV set to always play CC since I need that for all shows. I'm not deaf but what they called hearing impaired meaning that even with hearing aids I have a hard time distinguishing words---- esp. on the newer movies where there's so much ambient noise (music etc) that it's hard. The old movies (classics) don't give as much problem since the actors spoke clearly and didn't mutter as much.
I'm looking into buying an All Regions DVD player. Many of the foreign movies aren't made for Region 1 (the U.S. mostly). I'm missing all the older Inspector Morse DVDs because of that and also some of the Nordic mysteries that I love.
But my library received a very large collection of DVDs with SDH or CC and because of that I can reserve some of the Nordic mysteries that Netflix doesn't have. (Some kind philanthropist donated that collection several years ago. The only downside is that there's often a very long waiting time for them, but that's o.k.)
I was able to watch Varg Veum because of that.