I had a W8 who have been in for repair 3 times for the same issue. They had the tv for 3 months and the could not fix the problem. So now Sony has given me my money back. My question is, should i by a new W8(2014) or look at the W7/W8(2015)? Or should i try to find a 4K set. Is it worth paying a £300-400 extra when there is so little 4K material. And will i get any better picture quality?