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Though Jethro only has a sixth grade education, Jed is determined to enroll the boy in college. Unfortunately, the only institute of higher learning that is willing to accept Jethro is a third-rate California secretarial school. Louise Lorimer appears as Dean Frisby, while Andy Griffith Show semi-regular Hope Summers is seen as Mrs. Pringle. "Jethro Goes to College" originally aired May 11, 1966, as the final episode of The Beverly Hillbillies' fourth season.