New York - NBC plans to begin webcasting a series of nightly webisodes in the fall featuring Jimmy Fallon, the "Saturday Night Live" alum who is set to take Conan O'Brien's late night TV slot host next year when O'Brien replaces the retiring Jay Leno, The New York Times reported. SNL producer Lorne Michaels will produce the webisodes, which will be five or ten minutes long and debut nightly at 12:30 ET. "Conan needed time to find his show," Michaels told The Times. "I think this will help Jimmy to do that."