premise: Stephen Colbert refuses to host talk shows.
hypothesis: Stephen Tyrone Colbert ( [ koʊlˈbɛər ] , né : [ ˈkoʊlbərt ] born May 13 , 1964 ) is an American comedian , television host , and author . Colbert has hosted The Late Show with Stephen Colbert , a late-night television talk show on CBS , since September 8 , 2015 . In 2005 , he left The Daily Show to host a spin-off series , The Colbert Report .