Father Knows Best - Season 3 Episode 33 -

Henry Pruett, a traveling salesman on tour, accidentally knocks onthe door of Margaret: she, Jim and Henry attended college togetherand he was a promising man back then - on his way to become a doctor.But all he is now is the salesman (and a bad one too) and that'sembarrassing for him and he decides to keep it a secret. But Margaretand Jim find out about this anyway.[Note: Episode without Betty]