What secrets have been passed down to each United States president? The fascinating truths behind some of the most confidential secrets in American history. Interviews with former intelligence operatives, renowned historians and archivists show how classified information is treated in the highest circles of political power, how it's preserved throughout history, and who ensures continuity when a new leader is elected.

The Corleone crime family has touched millions of lives for more than four decades. From their origins in a pulp fiction novel by author Mario Puzo, the Corleones inspired one of the most important and enduring films in history. Francis Ford Coppola's The Godfather not only broke box office records--it actually infiltrated the American conscience. Narrated by Michael Imperioli (The Sopranos,) this special looks at how this groundbreaking 1972 film...

Produced with the exclusive cooperation of bestselling author Erich von Daniken, Ancient Aliens launches all-new expeditions to seek out and evaluate the evidence, with a concentration on discoveries of the last thirty years, including unusual DNA findings on man's evolution and newly decoded artifacts from Egypt to Syria to South America. It is a balanced investigation into a theory some believe cannot be true, but many agree cannot be ignored.

The hunt continues with brothers Rick and Marty's return to Oak Island as they look for more clues to this 200-year old mystery. Join the world's longest-running hunt for riches and discover the evidence that points to lost treasure in the historic and mysterious Money Pit.

A look at life with Hugh Hefner and his girlfriends at the Playboy Mansion.