Help with 4K

[Smokie365]

Hi everyone,
Thanks for reading and giving me any feedback. I currently have a Samsung D8000, brilliant tv still going strong. I'm going to purchase a new 55" 4K tv and I'm baffled as to which one. When I bought the D8000 I knew it was the top of the range. I have a bout 1600 euro to spend here in Ireland and a lot of the samsungs seem to be in the 6000 range if that makes sense. Are these panels going to be better than what I have in SD or HD? I know 4K will be great.
What would the best tv be in my price range?

 

[Old Bones]

You've got a 8000, so a 7000/8000 is what I'd look for, but your budget is going to be tight.

 

[Smokie365]

I don't mind putting a few extra quid to it but I just can't get my head around there model numbers. HU JU what's the difference? Can anyone recommend something in the 7000 or 8000 series?

Thanks