Premiered: September 10, 1955, on CBS
Premise: This landmark adult Western centered on Marshal Matt Dillon of Dodge City. John Wayne turned down the lead, suggesting James Arness (who remained for its entire run). Originating on radio (with William Conrad as Dillon), it moved to TV in September 1955. Its popularity spawned a number of copycats, but none would enjoy the longevity (and few the consistent quality) of this classic.