Secret recordings of German POWs, the mysterious death of 57 Irish immigrants, and the discovery of cannibalized Neanderthal bones are among the extraordinary stories featured in Season 12NEW YORK, April 11, 2013 /PRNewswire-USNewswire/ -- As one of PBS's ongoing limited primetime series, Secrets of the Dead is a perennial favorite among viewers, routinely ranking among the 10 most watched series on public television. Currently, in its 12 th season, Secrets of the Dead continues its unique brand of archaeological sleuthing employing advances in investigative techniques, forensic science and historical scholarship to offer new evidence about forgotten mysteries. Airing on three consecutive Wednesdays, May 1, 8 and 15, 2013, 10 pm ETon PBS (check local listings), Secrets of the Dead sheds new light on three compelling inquiries involving a bugging operation of 4,000 German POWs, the unexplained - until now - death of 57 Irish immigrants and the discovery of the first known evidence of cannibalism in Neanderthals. Bugging Hitler's Soldiers Wednesday, May 1, 10-11 pm ET (New)Spied upon by MI19 in a bugging operation of unprecedented scale and cunning - microphones were embedded in walls, lamps, behind mirrors, in fireplaces, even outdoors in trees on the English country estates where these conversations between generals and soldiers were secretly recorded- 4,000 German prisoners of war revealed their inner thoughts about the Third Reich and let slip military secrets that helped the Allies win WWII. Based on groundbreaking research conducted by German historian Professor Sönke Nietzel, the film tells the story of how those conversations were recorded and how they now reveal, in more shocking detail than ever before, the hearts and minds of the German fighter at that time. In total, more than 100,000 hours of these secret recordings were made. Only now have they all been declassified, researched and cross referenced. They represent a startling new body of evidence with which to revisit events of the war and they show the political divisions between those top generals who supported the Nazi ideology and those that did not. They also demonstrate the complicity of the rank-and-file soldiers in taking part in Nazi war crimes.