Samsung upgrades the 4K experience with SUHD TVs

Samsung is taking its 4K Ultra HD TVs to the next level. UHD is out, and SUHD is in. What does the "S" stand for? It officially doesn't stand for anything (although "Samsung" is a pretty good guess), it's mainly a rebranding of the company's line of LCD UHD TVs for 2015. There are upgrades however.…