Just joined the 4K club...
A cautious What you going to use as 4k signal?
Please don't do what my brother did. Bought an HD TV and for years fed it with a SCART lead . Then bought a 4K TV but still drives it through an HD only box .
Well, it will upscale SD and HD signals... both work well... in fact, the upscaling from a SD DVD is excellent.
Plus I have an 4K Android box so I can stream stuff...
And I have downloaded a couple of UHD movies...
And the tellybox has YouTube and Netflix and stuff built in....
...and no SCART sockets...