ALF: S1 E22 - The Gambler ALF

The Tanners are preparing for a garage sale to get some money for house payments. ALF discovers the alluring world of horse racing thanks to Kate's mom who bets on them. When the concept of a bookie is explained to ALF, he gets the bright idea of getting the Tanners some money through betting. When his initial bets yield only profit, the plan seems good... at the time.