I have been using Samsung UN48H8000 Curved 48-Inch 1080p 240Hz 3D Smart LED TV. It is the best one of the samsung 4k HD tv series, I think. It is a combination of the beautiful design of the curved screen. This Tv speaker sound quality is very good for us. This Tv has “Smart TV” feature, It is not important for some people but It is a must for tihs “high-end” TV. Also It has 3D, if you like to watch these kinds of films it is cool.
Now, if we talk about the price of Samsung 4k HD Tv Series (including curved ones), their price is definitely expensive from LG series. But it is cheaper then SHARP or SONY (which is not as good as samsung)