Little House on the Prairie - Season 6 Episode 23 -

When Eliza Jane and Almonzo's irresponsible younger brother Perley Day, arrives in Walnut Grove, looking for some quick money, Charles tries to get Laura to move her affection of Almonzo to the younger Wilder man. However, after Perley Day injures Almonzo's horse, Charles realizes the mistake he made while they tend to the horse in the Ingalls barn.