"And what I want to say is this," the 46-year-old Harvard graduate began. "Between my time at 'Saturday Night Live,' 'The Latenight Show' and my brief run here at 'The Tonight Show,' I have worked at NBC over 20 years. Yes, we have our differences right now. Yes, we're going our separate ways. But this company has been my home for most of my adult life, and I am enormously proud of the work we've done together. And I want to thank NBC for making it all possible -- I really do."