thumb|300px|right thumb|300px|right thumb|300px|right thumb|300px|right|"Buddy and the Powellettes" lip-synching to the 1957 song Little Darlin' by "The Diamonds". Yesterday Cafe is the fifth episode of the fourth season of Charles in Charge. It originally aired on January 28, 1989.
- The following plot was taken from TV.com. Feel free to
Lillian she has put a down payment on a restaurant and plans to turn it into a diner from the 1950's calling it the "Yesterday Cafe". Charles has to teach a couple of students about "American History", but if they fail they get thrown off the football team, so Charles approaches Professor Krick about going easy on them, he refuses and tells Charles if they don't pass, he can start looking for a new career, so he decides to give them any test he wants, Victor and Eugene think it's boring at first until Walter and Lillian tells them everything that went on during the 50's and they go to the diner to look up information and they eventually pass the test with flying colors.