Subtitles would help a lot but even that is missing with a lot of providers (I wonder what people with hearing disabilities do).
A far worse offender, for me at least, are Blu-Rays in that regard. During their introduction, they were hailed as allowing distributors to pack dozens of high-quality different language tracks and different subtitle options on the disc.
While the reality these days looks like this: Most Blu-Ray releases are still regionalized, very often with limited audio language options (in 2.0 quality) and sometimes not even subtitle support for one language.
I think a lot of that has to do with distributors pretty much forming cartels by region, thus having only rights to distribute only specific versions in specific regions.
I was pleasantly surprised that my Prime subscription might actually still be useful for something.
I've never understood why so many people feel that they have to see every superhero movie or every Blockbuster.
I don't mind going to see movies in the theater, but TV shows are a different animal. Hollywood refuses to allow me to buy the kind of access I want, digital, unencrypted copies that I can store on a disk drive, or failing that a streaming service that allows access to everything, so pirating is the only way to go.
Register an account in a different country, pay for a gift card in another currency, suffer international transaction fees + currency conversion rates, then manage multiple accounts with different balances depending on when iTunes has juggled around it's regional stores.
Or just visit pirate bay.
And as a side note it could open you up to getting your main account blocked by Apple if they start cracking down on that.