Johnny Carson had that "it" factor. The thing you can not explain ... it just is and certain people have it. From the skits that he performed in to the great line-up of guests to his interaction with animals that came to visit, Johnny had "it."
He gave several comedians their first network television appearance. And when he gave them a wink or a nod or a thumbs up ... they knew they had made it.
His monologues were so popular that they would be water cooler talk at work the next day. He continued writing material for David Letterman's monologues until shortly before his death. After performing one of Johnny's jokes, Dave would give Carson’s trademark golf swing in tribute to his mentor and friend.