Ron Howard, Patrick Ewing, Gene Catron Saxaphonist Joshua Redman sits in; Gene Catron performs a trick involving dominoes and a pool ball; Dave gives out candy. Details Casts Title Ron Howard, Patrick Ewing, Gene Catron Genres Talk Comedy Release Date 1996-11-13 Episode Runtime 01 Hours 03 Minutes Season Number 4 Episode Number 47 Production Companies Worldwide Pants, CBS Entertainment Productions, CBS Productions, CBS Studios David Letterman Self - Host Paul Shaffer Self -Musical Director Alan Kalter Self - Announcer (voice)