TV-Movies based on the popular series "Gunsmoke", in which the main character, Matt Dillon is again played by James Arness.
Even Gunsmoke star James Arness was taken aback by John Wayne's unexpected cameo on the long-running Western TV program.
In the 1950s and '60s, television Westerns were all the rage. Each of the Big Three networks (ABC, NBC, CBS) had their fair share of horse operas, with one of the biggest being Gunsmoke.