Seventy years ago, on September 10, 1955, a gunfighter named Matt Dillon first strode into Dodge City on CBS, Gunsmoke, helping to change the nature of TV Westerns, eventually running for 20 years, ...

When Gunsmoke first rode onto TV screens on September 10, 1955, no one could have predicted it would run for 20 years and more than 600 episodes — or that the show would still be airing daily on ...