Using brickseek, I was able to run down a VIZIO D65u-D2 65" 4K TV at Walmart for $499. It was the only one in my area that had any in stock, so ymmv. The SKU for brickseek is
46819838.
https://www.walmart.com/ip/VIZIO-…K/46819838
http://brickseek.com/walmart-inventory-checker/