Guy walks into a bar, and tells a reporter he's the last surviving Martian. Based on a story by Frederic Brown, this episode of X Minus One originally aired on August 7, 1956. X Minus One premiered in April 1955 on NBC and ran until January 1958. Like its predecessor series, Dimension X, X Minus One featured stories by the greatest names in modern science fiction: Ray Bradbury, Robert Heinlein, Clifford Simak, Robert Bloch, and many more.
"[X Minus One] brought current SF to radio, providing adaptations of many excellent new stories and thus allowing the public to appreciate the best science fiction available at the time." (Michael Ashley, The Time Machines: The Story of the Science-Fiction Pulp Magazines)