Who Was That Masked Man?

I'm sick.  In fact, I have been dragging butt for several days and have resorted to daytime television. Designing Women, my favorite sitcom of all time, has brought much comedic relief.  I have found my voice, so much so that my dogs have said if they have to listen to me sing the theme to The Brady Bunch one more time they will look for someone else to buy their dog food. Happy Days comes on after the four episodes of The Brady Bunch and it is at this point I'm bringing my story around to water skiing.  Fonzie "jumps the shark" on one episode.  Who really was the skier that went over the jump ramp?

Fonzie jumps the shark                                        
                                                                    Brenda