The Beverly Hillbillies (1962)

S2E35 Jed Foils a Home Wrecker

Drysdale makes an effort to preserve the Clampett's cabin, but his wife enlists a demolition expert to take down the mountain retreat. At the same time, Ginny Jennings and her sociology professor return to the Clampetts' place, only to find that the family is still living in the cabin.