Society Jimmy Fallon faces impossible 'Tonight Show' task (+video)

As 'Tonight Show' host, Jimmy Fallon will try to hold on to Jay Leno's traditional audience while also tempting the social media generation. Analysts say he might not be able to do both.

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Now that speculation has become confirmed fact – Jimmy Fallon will replace Jay Leno on "The Tonight Show" next spring – the question many are asking is: Why fix a show that isn’t broke? After all, Mr. Leno has been routinely winning his time slot against longtime competitor David Letterman and holding his own against upstart Jimmy Kimmel on ABC.