Blue Circle Hamburgers was a chain of fast food restaurants that was popular in East Tennessee a few decades ago. However, today only one location remains open. In my travels through East Tennessee, I have seen signs of some of the former locations repurposed for a new business. This is the only one I had seen in Middle Tennessee. I didn't realize they made it this far west. (Or maybe someone just liked the sign and brought it here.) Update: Fast forward a few years, I met someone who grew up in Livingston. This indeed once was a Blue Circle Hamburgers, but not for at least a couple of decades.