Before he moved to Late Night, and made the slot his own, David Letterman was already doing what he does in the mornings on NBC. For ninety shows, he ran an experimental and embryonic version of Late Night from June to October of 1980. Here’s a moment from the final show, wherein they take a look back at the show’s many ‘screw-ups’.
Most of this series still exists in the Worldwide Pants archives, and it would be great to see more episodes.