Bewitched (1964)

Season 8: Episode 13

Endora transforms Darrin into a gambler. Samantha inisists Endora remove the spell. Endora makes more trouble by having Darrin bet on a horse named Fancy Dancer that is bound to lose, and Darrin gets Larry and a client to place all bets on Fancy Dancer. Samantha pops to the stables to talk to Dancer about winning the race for her husband and his friends. In the race, it seems like Dancer is bound to come in last, but he pulls through and wins!