This set did not get a good review at all especially when you compare it to the non 4K E and M series TV. It looks like a firmware issue. My question is why do manufacturers risk damaging their rep by releasing incomplete products. Vizio had a bad rep for the longest time and with the new M and E series, were able to get out of that quagmire. Now they're back in again.
http://www.soundandvision.com/content/vizio-p652ui-b2-lcd-ultra-hdtv