The affable late night saga of Colbert/Letterman continues on April 22 when Stephen will appear as a guest on David’s Late Show, as announced by CBS. Colbert has been a guest on Late Night twelve times since 2005 while Letterman has yet to appear on The Colbert Report.  Hopefully this will change at some point so that we can boast about it, although the generally reclusive Letterman likes appearing on his own show just fine. In the meantime, let’s take a look at Colbert’s first and latest visits to the show.

From 2005, before The Colbert Report had premiered:

From December 2013: