Dave opens up the voluminous viewer mail bag to answer the big question: How important is Dave? (Air date: 12/29/83) #ViewerMail #Letterman #ChrisElliott Subscribe to Letterman: https://bit.ly/3GeOIAg Follow Letterman on Social: Facebook: https://www.facebook.com/DavidLetterman Instagram: https://www.instagram.com/letterman/ Twitter: https://twitter.com/Letterman Welcome to the Letterman YouTube Channel, home to all your favorite clips from Late Night and Late Show - as well as conversations with the writers, producers and performers who helped make it all happen. These highlights have been artisanly-produced, carefully-curated, and chosen completely at random by an old computer that used to pick numbers for the New York Lotto back in the 90’s.