I love this. Do simple procedures like this exist for every smart TV? For every smart device?

And how well does it work in practice? My experience with setting up my own media box suggests that online community solutions, no matter how well integrated, will always still have some rough edges that you don't see in commercial products (subtitle sync in my case).

I do think this kind of thing needs to become more commonplace, but it's clearly still going to be a steep barrier for most people.