4k tv seems kinda useless right now.
maybe ps5 and xbox4 will use it.
channels barely all broadcast in 1080 now. almost all of em.
it was a recent switch actually.
they arent prepared to now send out 4k- its not going to happen.
bluray is 1080, it could support files that large on the disks, but once again all those movies you already own will not play 4k.
the only way you can make use out of a 4k tv is if you recorded video yourself in 4k and played it on the screen.