Your gonna get what you pay for, stop looking at no name brand tv's and do yourself a favor and buy a known name brand. It will look and perform much better. You can get a Panasonic S60 for around your budget and will kill any tv in that price range and more expensive ones too.
Media room- LG 4K OLED EG9600, Pioneer Elite VSX-90, Samsung 4K K8500, Klipsch Gallery G28's, Klipsch Sub 12, Klipsch RS-52 II, Optik HD cable
Living room- Sony 4K 79XBRX900B, Onkyo RC-360,HTPC, Klipsch Reference R-62II, Rc52II,PS4
Gaming room -Panasonic ST60, PS3, Wii