It's Game 3 of the Appalachian League West division semifinals, the first minor league postseason featuring an Astros affiliate to get underway. I figured some of the others here might also be interested in the game.
You can listen to the game on the Kingsport network here: http://www.milb.com/multimedia/audio.jsp?home=t506&away=t413&sid=milb
Note that the Greeneville network is not broadcasting this game.
Currently, the game is in the bottom of the 3rd with Kingsport leading 1-0.