For me, it may as well be the Alpha and Omega of television.

On this date, May 22nd, in 1967 and 1992 respectively, two of my television idols began and ended their careers in broadcasting.

The first is a person I never recall not knowing.  Not for a single day of my life.
It was on this day in 1967, kids like myself all over America turned on the T.V. to watch a single man take off his sweater and shoes and play with puppets.
Mister Rogers' Neighborhood premiered on PBS.  Sing along...  you know you want to!

As I got older, and was able to stay up later, I discovered the comedy genius of the "King of Late Night T.V."  Johnny Carson hosted his final Tonight Show and retired from show business also on this day in 1992, exactly 25 years after Fred Rogers started.
Here is his farewell speech: