premise: Stephen Colbert is a talk show host currently hosting The Late Show.
hypothesis: The Late Show is an American late-night television talk and variety show on CBS . 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 .