Granny and Elly May talk about going to visit Petticoat Junction. Even in the fictional world in which they and the characters of Petticoat Junction (1963) live, they would not refer to going to "Petticoat Junction", which is not used even as a nickname within their vernacular, but rather Hooterville, the actual town in which they live.
After Miss Jane drives up to the Clampett mansion with Mr. Drysdale, when Jed and Mr. Drysdale are talking in front of the mansion door, the shadow of the boom microphone is clearly visible on the left side of the screen for approximately 15 seconds.