MicroCenter has the LG 65UJ6200 65" Class (64.5" Diag.) 4K Ultra HD HDR IPS Smart LED TV on sale for $699. They are currently running a promotion in which you can buy gift cards for 15% off. So, you could spend $594.14 in store on $700 worth of cards, and turn around and use them to buy the TV. In my area, factoring in tax, this would be about $635 out the door.
The gift cards can supposedly only be used for "select product categories", however I just spoke with customer service and they confirmed they can be used on new and refurbished TVs, including those on sale.
Google is showing good reviews (4.6 out of 5 stars). This is an active HDR smart TV...Best Buy currently has it for $800, but guessing they won't price match the 15% gift card amount.
C-Net spec sheet: