My mistake, in that case it’s not the closure what I mean. But then how are those kinds of sets called?

You should bookmark theindex.moe (aka piracy.moe), it has a comprehensive list of manga/anime streaming sites, you can use search criteria like langauges, soft-subs, noads, no anti-adblock, etc.

I currently use hianime .to the most

You don’t need a smart tv, keep your dumb one and consider buying a Roku, save yourself a few cents