There were a few in the 70s
BJ and the Bear: Truck driver and chimp companion. (chimp is an fantasy element as those guys are nasty) IMDB classes it as a comedy, but it was an hour long and no laugh track. http://www.imdb.com/title/tt0078564/
Dukes of Hazzard. Another rural show. The family apparently lives off farming and a waitress's income. Regulars include a mechanic.