TVC 667.2: Ed welcomes back Columbo historian David Koenig (Shooting Columbo: The Lives and Deaths of TV's Rumpled Detective). David's latest book, Unshot Columbo: Cracking the Cases That Never Got Filmed, takes a deep dive into nineteen Columbo mysteries that were written for either the original NBC series or the ABC revival, but, for one reason or another, never went into production. Topics this segment include the various attempts to bring back Sergeant Wilson, the character played by Bob Dishy in "The Greenhouse Jungle" and "Now You See Him," beyond those two episodes and why Peter Falk kept opposing those efforts. Both Shooting Columbo and Unshot Columbo are available through Bonaventure Press.