how is it lit though?

Are they both LED Lit?

Your 4k screen is probably LED lit right (even if it's upscaling) the lighting of the LCD panel is really where the enhancement comes.

And of course if you have 4K content then you really will notice the difference then but it really only works with Larger screens effectively.

But if you are just watching Standard HD upscaled then it's really not the same. or even terrestrial tv signals. So it all depends on what you are using it for.

For what you are doing Ady the 4K tv is a great choice, but you are not the average consumer

I think the best way to put it is if you are using high end visual apps or Gaming it's definitely a good choice but if you are watching Blu rays or TV or even current generation gaming a standard LED lit LCD delivers in a living room environment and is a Good Purchase.

There is still such a glut of content for home consumption it's a bit "iffy" even 4K streaming video is not 4K really. It all depends on what you want to use it for.

I think in reality the buck stops with I still do may projection jobs that desire VGA signal and not only that, that people still, even if they have a wide screen to project on to put their content in 4:3... yes there is a wide screen and the content is 4:3 it is extremely common place and a stark reality that people cannot keep up with change even if for the better or that it is alien to them.

Technology is moving so fast it's very hard to gauge what exactly will come next but as long as you stay behind you are safe.

It is both frustrating and admirable but at the very least it all does not weigh as much as it used to in terms of kilograms!!! :)