While it will technically work, the old tube tvs had a 4:3 resolution of 5xx x 3xx or so, depending on if they used PAL or NTSC. Modern TV Interfaces are typically designed for a screen resolution of 1200x800 and 16:10 or 16:9, which means the fonts will be unreadable and half of the screen is cut off.
Downscalers exist, though you’re right about text. TV these days just isn’t designed to be legible on tube TVs because there’s really no need to take them into consideration.
I know a lot of using it was actually kinda awful. I don't long for missing a finale episode because it was a bit too rainy for the signal to get through but there was something wonderful about how tactile and beautiful analogue tech was.
Also it felt really really good to be able to slap something into working.
My old Xbox 360 I got back in 2010 was the last piece of tech I owned that could have a problem fixed with a bit of a whack. The disc drive liked to stick closed so I just smacked it on top and out popped my disc. Surprisingly never once damaged my games by doing that.
Good old faithful still runs to this day, only got retired about a year ago and was a decent media box despite its age.
Don't really need photoshop. It's not all that hard to get a setup like this working with cheap converters from Amazon. It's whether somebody's grandma who refuses to upgrade from a TV that old would know how to do it that's the questionable part, but it's not impossible somebody set it up for her.
I can actually imagine my grandpa doing this. I wouldn't call him a computer wizard by any means, but he has surprised me before. He will just go to the library, and have the librarians find printed computer magazines which would deal with various connectors, learn about HDMI and composite. Then proceed to find another magazine which has reviews of adapters and take a bus to the big electronics shop to ask about adapters and have them place the order for one.
He actually did this when he needed to digitize some tapes. Granted, he ended up with a firewire-connected external sound card and a tape deck from a hi-fi store connected to Audacity, when all he needed was my old walkman, a 3.5mm cable and Windows Recorder, but hey, it got the job done.
He used to be a researcher and he somehow sees these things just as requiring time to find the right source of information... And time he has.