Dr. John Brinkley had figured out how to beat the system and built the most powerful radio station in the world. The entire United States could now hear what he was selling. Music was a big part of that and Border Blaster XERA introduced Americans to gospel, the blues, Tejano...and provided the first nationwide exposure to a family band that would change American music forever. Hear what was on the "X" in this latest episode of Wise About Texas.