Sometime by the fall of 2014 ("at the latest"), Jimmy Fallon will take over for Jay Leno on NBC's The Tonight Show, and will do so from New York City, the city the left in 1972. A brand, new state-of-the-art studio at 30 Rock is already under construction. This is all according to a new report from the New York Times' Bill Carter, who is the authority on late night news if there ever was one. Whether the move is the root cause of current host Jay Leno's tantrums of late in unknown. His issues with NBC management are "being smoothed over,' Carter reports.