"I cannot sing, dance or act; what else would I be but a talk show host"

In this quote, David Letterman is revealing his self-awareness and self-deprecating humor. He acknowledges that he lacks the skills of singing, dancing, and acting, which are typically associated with traditional forms of entertainment. However, he sees himself as a talk program host, which is a different kind of home entertainment that relies heavily on conversation and wit. By stating "what else would I be," Letterman is implying that being a talk show host is the best fit for him, as it enables him to display his strengths and amuse audiences in his own distinct way. This quote highlights Letterman's humility and his understanding of his own strengths and weaknesses.