A:Answer AUA vs PUB, The First letter A and P refers to the retailer that sells them. A means they are being sold by exclusive or membership retailers like Sam'sClub and P means they are being sold by Common retailers like Bestbuy and Walmart.
The second letter, U, refers to the region or country that they are manufactured for. U Stands for North America
The last letter, A and B, refers to the aesthetic design of the TV like the stand and bezel.
This is from an LG live chat that I had.
All features should be the same.