Happy Days S03 E05 The Other Richie Cunningham

"Those were the days of the 1950's...filled with innocence and the promise of even better days to come."

Needing to make a good impression for a prospective business deal, Howard asks Richie to take the ""Prince of Porcelain's"" daughter out on a date. Richie, however, already has big plans and asks Potsie to take his place and pretend to be him.