Have Gun Will Travel - E1 ~ Published on Nov 27, 2013. Have Gun -- Will Travel is an American Western television series that aired on CBS from 1957 through 1963. It was rated number three or number four in the Nielsen ratings every year of its first four seasons. It was one of the few television shows to spawn a successful radio version. There were 225 episodes of the TV series, 24 written by Gene Roddenberry.