What is the difference between these Vizio tv's?

Not really an answer, but more of a suggestion. Do Not buy VIZIO! They have a flaw that VIZIO has not fixed, nor recalled.The picture goes out and none of the buttons work...this usually occurs anywhere from 6 months to 2 years...and VIZIO has terrible customer service. I suggest checking with consumer affairs to see for yourself. Hope this was truely helpful!