The name says it all – “Sony”. Its been 3 months since I bought this TV, haven’t had any troubles till date. We don’t watch television programs much other than sports and news and rarely films. We use it mostly for internet and its media. The sound system is good for our 250 sq ft room. The picture quality of 4K UHD is simply great. I haven’t seen anything this clear in my entire life. It was a dream to buy such a television for my family and I finally can call it the best Smart TV in market today.