Here's the show, America's Book of Secrets on the History Channel, which interviewed ARCA trustee Erik Nemeth (PH.D., Independent Researcher) for an episode aired in June, Lost Treasures.  At around minute 29, the show focuses on the 1990 theft of the Isabella Stewart Gardner Museum in the segment "Bare Walls". Interviews include FBI Special Agent Geoffrey J. Kelly; Robert K. Wittman, former FBI Special Agent; Nemeth; Catherine Williamson, PH.D., Director of Fine Books and Manuscripts, Bonhams; and Chris Isleib, Director of Communications, National Archives.