With news that Jay Leno would take over for Johnny Carson, Letterman later packed his bags and moved to CBS, where he hosted a late-night talk show opposite Leno, called "Late Show with David Letterman." NBC executives left a dirty taste in Letterman's mouth and provided ample material for joke-making. As usual, Letterman brought his normal comedic punch to the program, and with a wider audience, he gained an ever wider following. Here, Letterman interviews Lance Armstrong, winner of the 1999 Tour de France.
Patrick Pagnano / AP
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