Horse? What Horse?
S01E29 - Airdate: 1966-05-11
Runtime: 30 min
Lisa belives that Oliver's beginning to crack under the pressure of running the farm. After Oliver claims to have seen a spotted horse and a zebra, she calls Doc Watson to give him a checkup. Lisa's attempt to slip Oliver a sedative backfires, resulting in her taking a very long nap.
Episode details and rating from TVmaze.