As the clock is running out on
"David Letterman: A Life on Television," will air on May 4, just a couple of weeks ahead of Letterman's final
The 90-minute special, hosted by
Of course there will be clips from his 22 years on "Late Show" on CBS, including his famous post-9/11 episode in which he movingly addressed the tragedy before the nation. And there will no doubt be plenty of Stupid Pet Tricks, Stupid Human Tricks and lots of celebrity guest moments.
Letterman's late-night career spans 33 years, and at the time of his retirement, he will have hosted 6,028 late night broadcasts. Before that, he had a short-lived morning show on NBC titled "The David Letterman Show," and before that he was a weatherman in Indianapolis.
Along the way, he also appeared in the cast of Mary Tyler Moore's short-lived variety show, "Mary" and hosted the similarly short-lived "Starland Vocal Band Show" on CBS.
Here's hoping they also include a clip from his appearance on "Mork & Mindy."