It's time for a new look at a very old universe. In its mysteries, we are finding the secrets of our past and the key to our future. This is a history of how we know what we do about space. Fifty years have flown by since man first ventured into space.

The First 48 follows the nation’s top police departments during the critical first 48 hours of murder investigations.

The series examines each piece of forensic evidence, each witness, each possible lead, and each turn in the road that ultimately leads detectives to their killer.

In an idyllic French Alpine village, a seemingly random collection of people find themselves in a state of confusion as they attempt to return to their homes. What they do not yet know is that they have been dead for several years, and no one is expecting them back. Buried secrets emerge as they grapple with this miraculous and sinister new reality, struggling to reintegrate with their families and past lovers. But it seems they are not the only ones...

ESCAPING POLYGAMY follows three sisters who left the Kingston clan, a secretive polygamist group in Utah known as the Order, and who now help loved ones and strangers break free of polygamy.

Celebrate 20 years of ANTIQUES ROADSHOW! Travel across six U.S. cities for even more hidden treasures. Then, take a look back at ROADSHOW’s favorite appraisals from all 20 seasons including one find now valued at {dollar}750,000-{dollar}1,000,000.

In "Great Minds," Dan Harmon meets with the greatest minds of history for an in-depth conversation about their lives, followed by mini excursions out into the world.

Separated from his friends and family, and on the verge of losing it all, Michael Westen goes deep undercover, joining forces with a mysterious woman and infiltrating a sinister terrorist network. With time running out, Michael must do whatever it takes to stay alive and protect his loved ones; but now, he may be forced to go too far.

Old Smokey and Josh try one of the most notorious military rations ever made. Then, will things fizzle when they taste an out of this world powdered candy from the 70's' And, the guys visit a beer club where they find a brew that changes colors.

In "The Tesla Files," a new investigation driven by declassified CIA documents suggests a secret history of bitter rivalries, government conspiracies, Cold War and WW2 spycraft, extra-terrestrial communication, and amazing achievements.