Late Show with David Letterman is the first iteration of the Late Show franchise. The show debuted on August 30, 1993, and was produced by Letterman's production company, Worldwide Pants, and CBS Television Studios. In 2002, Late Show was ranked No.7 on TV Guide's 50 Greatest TV Shows of All Time. In 2014, Letterman announced his retirement; the final Late Show aired on May 20, 2015.