Name Credits Year ![]() Critics' Rating The record-breaking 20th season of Gunsmoke also proved to be the series' last... Full Synopsis Character played: Doc Adams 1974 That Gunsmoke was the longest-running dramatic series in TV history was common... Full Synopsis Character played: Doc Adams 1973 With the cancellation of Bonanza in December of 1972, Gunsmoke remained standing... Full Synopsis Character played: Doc Adams 1972 Seventeen seasons and 540 episodes since it burst on the TV scene as the first... Full Synopsis Character played: Doc Adams 1971 Having twice "cheated the hangman" by eluding CBS' efforts to cancel the series,... Full Synopsis Character played: Doc Adams 1970 Rescued from cancellation when it was moved from Saturdays to Mondays during its... Full Synopsis Character played: Doc Adams 1969 Despite stiff competition from NBC's top-rated Rowan and Martin's Laugh-In, the... Full Synopsis Character played: Doc Adams 1968 Rescued from cancellation by an eleventh-hour decision from CBS president... Full Synopsis Character played: Doc Adams 1967 Beginning with its 12th season, Gunsmoke switched from black-and-white to color,... Full Synopsis Character played: Doc Adams 1966 By the time Gunsmoke entered its record-breaking eleventh season in the fall of... Full Synopsis Character played: Doc Adams 1965 The fact that Gunsmoke is able to enter its 10th season despite ever-descending... Full Synopsis Character played: Doc Adams 1964 Entering its ninth season on CBS, Gunsmoke has already made history as the first... Full Synopsis Character played: Doc Adams 1963 The decision to expand Gunsmoke from 30 to 60 minutes during its seventh season... Full Synopsis Character played: Doc Adams 1962 1961 was a year of transition for Gunsmoke. The radio version of the popular... Full Synopsis Character played: Doc Adams 1961 Having ridden high in the saddle as America's top-rated TV series for the past... Full Synopsis Character played: Doc Adams 1960 | ||
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