There were a number of TV shows in the 1960's--Green Acres, the Beverly Hillbillies, Andy Griffith, Mr. Ed, etc.--that focused on rural America. That changed at the end of the decade and the beginning of the next, when shows like "Mod Squad" and "All in the Family," which focused on urban life, were phased in.
Yes.
At first the focus on Rural America was nostalgic,
Then it became somewhat mocking.