Oh dear lordy. Just as I think I've settled on my TV upgrade I come across another thread on this forum that throws me a curve ball. I'm half tempted just to buy the KU6400 based on price alone and be done with it - then I can start enjoying the tv and stop reading about them instead! I currently have a Panasonic Plasma TH37-PX60, which I've had for about 10 years - it's still going strong, but looks dated with it's massive bezel - so I have permission from her indoors to upgrade to a 50" one. There are some great threads on here that go into detail about the problems of upgrading from Plasma, suggesting OLED etc. But I'm done with reading/watching reviews, just need help deciding on which of the above to choose. Here's what I use it for: I mainly use the TV for Sky HD and Xbox One For movies I mainly stream these from online services (Amazon Prime/Xbox Movies etc.) I don't have a vast collection of dvds/blu-rays etc (and don't intend on starting one - see above) I watch the occasional sporting event (football, grand prix etc.) I am going to upgrade the Xbox One to Xbox One S imminently The TV is approx 3 meters from the sofa (if this matters much) One of my concerns is buying a TV that is future proof and that the manufacturer doesn't stop releasing new firmware for (fixing issues, compatibility upgrades etc). So in the UK, the prices are negligible between the KU6000 (around £550) and the KU6400 (around £600), but as pointed out in many other threads the KS8000 is double that (around £1200). Therefore, given what I'd use it for - is the KS8000 really worth that?? Many thanks for any input!