After the popularity of Robert Altman's movie, MASH (1970), CBS launched the television series M*A*S*H (1972-83) on 17 September 1972. The series finale, "Goodbye, Farewell and Amen", was first aired 11 years later on 28 February 1983.
MASH
MASH was not the oldest TV show, nor was it the longest running show. See the link below for a complete list.
September 1972
September 17, 1972
goodbye
The television show was filmed in California.
Premier TV Show In 1940
September 17, 1972
1972
Walter Eugene O'Reilly, "Radar," the Company Clerk in the TV show and movie Mash, was from Ottumwa, Iowa.
1983
If you mean the set for the TV show, it was in California.