Gunsmoke (1955-1975)

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Gunsmoke (1955-1975)

Photo by CBS Photo Archive/Getty Images

Gunsmoke tops the list as the longest-running dramatic series in network television history with 635 episodes. Set in Dodge City, Kansas, during the 1870s, Gunsmoke began as a radio program in 1952, switched to the land of visual entertainment in 1955, and finally ended its 20-year run in 1975.

 

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