The great late night talk show host, David Letterman, will air his final episode on May 20, ending 33 continuous years on TV. Some say that Letterman has phoned it in for quite a while; the purpose of this poll is to determine when Letterman started phoning it in.
One key date is when Everybody Loves Raymond became syndicated. Since Letterman's production company, Worldwide Pants, developed the show, he's made more money from syndication than from hosting The Late Show.