I don't know why no one saw your post. Sorry for that.
First, the only "Keystone, AL" I can find is a neighborhood in Pelham outside of Birmingham. Please post your TV Fool report here by copying the URL from your web browsers' address bar and pasting it in a reply.
Second, any TV with a digital tuner can receive digital HDTV signals if you have an antenna with which to collect those signals. A set of old-style "rabbit ears" will pick up channels if you're close enough and/or can't have an outdoor antenna, and if you want more stations you can get more specialized antennas. Rabbit ears can be purchased for as little as $10 and as much as $50, but you should never pay more than $25. There are also flat, so-called "Leaf" antennas that are regularly advertised on television. And of course, there are directional antennas that can run anywhere from $40 to $500, depending on what you want to receive and how much gain you need.
If you don't have a TV with a digital tuner, you'll need to get a digital converter box. These can be obtained from electronics retailers and sites like Amazon for between $30 and $50. They usually output signal in the same type of coaxial cable as the antenna, but also usually have an HDMI port for digital TVs that don't have a built in tuner, or where the built-in tuner has failed.