http://www.vanityfair.com/hollywood/2014/02/johnny-carson-the-tonight-show

"There was a ring-a-ding quality to those early shows," notes Vanity Fair, which adds that Carson had run-ins with mobsters during his first decade on "The Tonight Show."
Read more at http://www.hitfix.com/tv-tattle#5UJGl68xzhjEFhp0.99

I couldn't look at the site because of server issues, the Vanity Fair one that is.