There were, seemingly, a zillion Westerns on television in the 50's & 60's. Seemed to be at least one or two per night.
Anyway, The Life & Legend of Wyatt Earp was billed as one of the first adult Westerns, along with Gunsmoke, which outlasted Earp by 14 years. The dramatizations of Earp's career exploits lasted for 6 seasons (1955-61). Hugh O'Brian was cast in the title role.
As we learn through the course of the series, Earp's appointment as Marshal of Tombstone was the apex of a career progression that began in Kansas. In this sample episode, Earp meets General Robert E. Lee......
In memory of Hugh O'Brian, who passed away last week.