The Great EscapeDVD - 2005
Archaeologists discuss the labor and intellect required to build three tunnels equipped with electric lighting, railways, and underground air pumps used by prisoners-of-war to escape.
Publisher: [Boston] : WGBH Boston Video, 
Characteristics: 1 videodisc (ca. 60 min.) : sd., col. with b&w sequences ; 4 3/4 in. --
Alternative Title: Nova (Television program)