NBC aired this series from 07/05/45 to 09/27/45 with Jose Ferrer starring as Vance.  The series was then picked up by     ABC beginning on 07/23/46 for a short West Coast run.  Finally, Frederick Ziv syndicated the series from 1948 to 1950    starring Jackson Beck.   Last minute clue gathering would lead to last minute revelations and solutions.  Original novels were by S.S. Van Dine.