The Show Format Changed More Than Once
Who would have thought that Gunsmoke got its start on the radio? It used to be a half-hour radio show before it got turned into an hour-long black-and-white TV show. After this, it was turned into an hour-long color show. As you can see, it managed to keep up with the times. This was actually one reason it became so big!
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Doc Did Not Have A Given Name For 16 Seasons
Doc, also known as Doctor Adams, might have been the second lead of the show, but he did not have a first name for the longest time! It was only after 16 seasons that it was revealed: Galen. Milburn Stone himself chose the name. The writers let him do so since he was the one who knew the character best.