Jed (Buddy Ebsen) says Pearl's (Bea Benaderet) piano playing is famous from "Oxford to Eurekey (Eureka) Springs". Both are towns in northern Arkansas, about 130 miles apart, with Branson, Missouri north of them and between the two towns.
When the Clampetts return to California the scenes at the airport were actually shot AT LAX.
The TWA airliner transporting the Clampetts and Bodines to California is a Convair 880.
This show's copyright has expired and it is now in the public domain.