I bought one of these (70" 4K) on the September 1st Woot sale. Less than a week later after just a few hours of use, a bright blue line appeared down the middle of the screen. I was refunded my money, but it was still a pain mounting it on the wall then taking it down after only a week. It did have a REALLY nice picture… while it worked that is.
Just be happy that happened after one week an not one year an a week