From 1952 until 1957, fans of Dragnet could catch one episode on radio and a different story on television. The adventures of Sgt. Joe Friday aired concurrently on radio and the small screen for hundreds of shows, and this week we'll hear three radio episodes that were later adapted for TV. We'll hear the show that was adapted as the first episode of the TV series (originally aired on NBC on July 21, 1949), "The Big Lease" (originally aired on NBC on November 1, 1951), and "The Big Show" (originally aired on NBC on April 10, 1952).