Did you enable the setting on your TV to get 4K?Hi Guys and Gals, i recently purchased a 55B8000UW from @AllIncluded and I must say i received amazing service from the start and received an awesome price as well, he even went out of his way to help me arrange an after hours delivery as i would only have been home after 6PM as my daily commute would not have let me be able to safely transport it. Big thumbs up and i can definitely recommend them.
AND WOW what a TV. Had some initial teething issues but it was more of an I.d.10.T error than a hardware issue as i wanted my PC to go display at 4K resolution but it really did not want to play along, i swapped cables and tried all the ports and eventually i just went back to 1080p for my pc and all the issues stopped, i've also not had a minutes trouble with the smart tv part of it, but have mainly only used Netflix and some of the free content. I upgraded my account to try and get 4K but my Telkom LTE has not been that great of late and i could never go above 1080p. (on wifi)
Its also cool that you can just cast from your phone without an extra APP.after getting MiUI11 my Xiaomi S2 picked it up right away and casting is a breeze.