Family Ties (1982) : 7x3

Alex feels left out when Andy begins spending less time with him and more time with Nick's streetwise nephew Rocco. While Steven rages about the household bills, Alex worries about something else: Andrew's budding friendship with Rocco, Nick's visiting eight-year-old nephew. Andy quickly becomes enchanted with the boy, who's a pint-sized version of Nick and thus not exactly Alex's idea of a positive role model for his little brother.