If you like drinking beer, explosions, cussing and shooting rockets, then boy, does the National Geographic Channel have a show for you.The show's coverall and camoflauge-clad cast may look and sound like slack-jawed yokels, but there's nothing stereotypical about them. The stars include those with Ph.D.s, an original NASA machinist and a bona fide genius.The show is more than an excuse to blow things up. In each of the episodes, the Rednecks try to solve big problems in military and space research by inventing new, cheap technology.