SEARCH BLOG: TELEVISION.
We've just gotten used to 4G for cell phones. The next upgrade may come in the form of 4K broadcasting. 4K is roughly 4 times the resolution of a Blu-ray DVD.
Look for it sometime in the 2nd quarter of this century. Meanwhile...
We could have it sooner, but that would mean your monthly cable bill would go up 100% or so. And some people think that it is just not worth it.