D
If what you primarily want is old movies, I'd get the TCM (Turner Classic Movies app) for whichever way you go with hardware.I'm so close to cutting the TV cable.
I get hundreds of useless channels. The other day I worked it out, I watch shows over 11 channels. Three of the channels there's one show on each that interests me. One thing that they do that really irritates me is that every once in a while they take away channels and substitute something else. They do this without notifying me. I assume that a contract must run out so it goes away. One package is 15 channels that I select, four of them were changed for things that I'd never watch. Anothere package was 16 channels, over the years it seems that everything was changed out except for one. Today I rearranged selections and got the bill down a bit. I feel like I'm spending a lot every month for nothing.
Since I have unlimited fiber optic internet, I'm thinking of getting Amazon Prime video with an added option or two. I want 4K resolution. Not sure if Netflix would be better. All I really want is some old movies. Other network channels I can get for free via apps on the internet and cast them onto the TV. I seems like it's just a bit more work involved.
For streaming subs, I have Netflix and Disney+. Amazon Prime Video comes with Amazon Prime, which I've had since inception (2006 IIRC). A 4K Amazon Firestick is $50 ($25 on sale). Works great over wireless. If you order one from Amazon, it will show up already registered to your Prime account. You can then install the free TCM app.
How you get your live TV is a whole other can of worms.