Conan O'Brien By brentbonkoski Period: Apr 18, 1963 to Jan 1, 1987 Life before show business Period: Jan 2, 1987 to Jan 1, 1991 Saturday Night Live Period: Jan 2, 1991 to Sep 13, 1993 The Simpsons Period: Sep 13, 1993 to Feb 20, 2009 Late Night with Conan O'Brien Period: Feb 23, 2009 to Jan 22, 2010 The Tonight Show with Conan O'Brien Period: Mar 11, 2010 to Nov 8, 2010 The Legally Prohibited from being on Television Comedy Tour Period: Nov 8, 2010 to Feb 24, 2017 Conan on TBS
