Late Night with Conan O'Brien is an Emmy Awar-winning American late-night talk show on NBC. The second incarnation of NBC's Late Night franchise, O'Brien's debuted in 1993 after previous host David Letterman moved to CBS to host the Late Show opposite The Tonight Show. The show features varied comedic material, celebrity interviews, and musical and stand-up comedy performances. Late Night airs weeknights at 12:37 a.m. Eastern / 11:37 p.m. Central in the United States.