If you think you know a lot about westerns....but have never heard of Dick's Powell's Zane Grey Theater.....then you don't know squat.
https://en.wikipedia.org/wiki/Dick_Powell%27s_Zane_Grey_Theatre
TV Guide called the show "an educated 20th century view of the Old West".
Five television Westerns began as episodes of Zane Grey Theatre:
Trackdown, starring Robert Culp ("Badge of Honor"),
The Rifleman, starring Chuck Connors ("Sharpshooter"),
Johnny Ringo, starring Don Durrant ("The Loner"),
The Westerner, starring Brian Keith ("Trouble at Tres Cruces"), and
Black Saddle, starring Chris Alcaide ("A Threat of Violence"). Alcaide was replaced by Peter Breck in the principal role when Black Saddle was sold as a series. The "lineage" of Zane Grey Theatre also includes the NBC series, Law of the Plainsman, which originated from a February 17, 1959 episode of The Rifleman starring Michael Ansara as Marshal Sam Buckhart (The Indian).