His dry, sarcastic humor caught the attention of scouts for "The Tonight Show Starring Johnny Carson", and Letterman was soon a regular guest on the show.
Будучи частым гостем в телевизионных шоу, Леттерман вскоре стал постоянным участником "The Tonight Show Starring Johnny Carson", завоевав широкую популярность своим амплуа комика.