[BreezyDog]

There are already DVD players on the market that will upscale to 4K.

[adorno]

There are already DVD players on the market that will upscale to 4K.

The keyword for my previous post was "practical". A super-high-definition TV would not be practical for just viewing material from a DVD that can upscale the content, which content wasn't originally created for the ultra-high-def TV. An ultra-high-def TV will remain impractical until TV broadcasts start being delivered in that mode.