Bewitched (1964)

S2E25 The Horse's Mouth

Dalleyrand, a racehorse, escapes from its owner and finds refuge in the Stephens' backyard. Samantha, seizing the chance for a unique experience, transforms the horse into a woman. While Darrin expresses his disapproval, Samantha insists that this presents a rare opportunity to gain insight into the life of a racehorse.