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Andy Samberg Visits "Late Night With Jimmy Fallon" at Rockefeller Center on February 7, 2014 in New York City.
Tonight, Jimmy Fallon officially takes over "The Tonight Show," but he does so amidst a very different media landscape from the one that launched the show in back in 1954.
Today's audiences, especially the coveted younger demographic, are just as likely to watch "The Tonight Show" on you tube the next day. For more on how Jimmy Fallon might affect who watches the program and when, we're joined by Michael O'Connell of The Hollywood Reporter.