Conan O'Brien hosts a late-night talk show in the United States.
Conan is a late-night talk show airing each Monday through Thursday at 11:00 p.m. eastern time on TBS in the United States . Conan O'Brien . He is best known for hosting several late-night talk shows ; since 2010 he has hosted Conan on the cable channel TBS . O'Brien was a writer and producer for The Simpsons for two seasons until he was commissioned by NBC to take over David Letterman 's position as host of Late Night in 1993 .