My neighbour is having this Vu 50k310 uIltra Hd smart led tv.He bought is led for 30, 000rs online.After buying now as he is using this led he was very upset as it not a 4k led tv, vu is cheating their customers by saying it is a 4k ultrahd but it is not.As the tatasky 4k digibox is not supported on this television.Moreover the picture and sound quality of this television is also very bad as compared to samsung and sony.The worst part of this company is that if their customers is having some issues with their led, service center is not available.Only very few service centres are there in whole country. So friends this led is not good for buying in any terms.