“The Late Show with David Letterman” bids adieu to the 43rd President of the United States tonight with the final installment of its popular segment “Great Moments in Presidential Speeches.” Given the current Leader of the Free World’s penchant for unusual use of the English language, the segment debut on March 30, 2006 was followed by 376 more installments. Number 378 tonight will be an extended retrospective of the series. To stir interest, CBS has posted a teaser on YouTube.
