Yep, the 4k UHD channels need to be available & movies need to be broadcast in it as well.
There's the 4k UHD media player that runs $500.......
I remember when I bought my HD plasma 8 years ago & hardly any channels were in HD, lol. When ESPN, travel channel & a few others went HD, thought it was really cool. Now we are spoiled with everything on TV needing to be HD. Are we gonna look back say in the year 2025 & say that 1080p HD wasn't that great compared to whatever technology will be out then?
I remember reading about OLED, a technology taking parts of a plasma & parts of an LED & putting them together building a really nice TV. That technology is really slow for some reason & you can buy one but they are really expensive & supposedly OLED is gonna be better than 4k UHD.......but like was mentioned, unless the material is broadcast in 4k UHD, its just what we have now with a more expensive TV.