Mon---RALPH'S FAMILY PROBLEM

Ralph is at a loss: his parents are divorcing.

Tue---NO TELL MOTEL

Howard tries to cool a torrid romance between Joanie and Chachi.

Wed---LIVE AND LEARN

Fonzie returns to high school as an auto-mechanics instructor.

Thu---DREAMS CAN COME TRUE

Marion appears on a TV show offering a prize to the most heart-rending tale of woe.

Fri---HELLO, ROGER

Marion's Ivy League nephew Roger is introduced as a foil to Fonzie.

My choice for the series' Jump the Shark moment. It was bad enough that the show went on without Ron Howard and Donny Most, but to have Ted McGinley replace them as a whole new character was clearly a sign of desperation that the series never recovered from.