The television show featuring UNLV English professor Joseph McCullough discussing American humorist Mark Twain has been postponed until Nov. 21.

The A&E network originally had planned to air the Mark Twain installment of its popular "Biography" series on Monday (Nov. 11).

The scheduling change was prompted by the retirement of television newsman David Brinkley. A&E has told the university that a "Biography" installment on Brinkley now is scheduled for Monday.