That's the website I use when looking for a new TV as well. The $199 tv's are used for barn, ps4 and mickey mouse clubhouse haha.I Have 2 LG's 7k series and a 1 Samsung 7k series. I think the picture on the LG is a little bit better, but I am very happy with all of them. The Samsung is the tv in our theater, a 75", it has a very crisp display with no blurring (once you tweak all the settings), and the blacks are pretty good. Occasionally they look blotchy, but not very often.
www.rtings.com is a good site to look at reviews, each tv is better for a certain type of viewing, ie video games, movies, sports, bright lit rooms, dim lit rooms.....
They also have all the settings to adjust to get the best picture out of them, which is usually turning off all the software enhancing features and display the content exactly how it comes out of the source. I was ready to return the Samsung when I used it right out of the box, but after adjusting the settings, the picture is great.