Nadia Comaneci; Sally James

From roots in the Deep South to the slums of New Jersey, "Who Do You Think You Are?" follows the journeys of some of the most well-known names in American popular culture. Watch as celebrities discover unknown details about themselves and their families while researching their ancestry with the help of historians and genealogical experts.

As America expands westward, intrepid explorers and rugged mountain men risk their lives to blaze new trails into the wild frontier.

Ever wonder what it's really like to be in a movie? Go behind the scenes of House of Wax with Chad, Elisha, Paris and Jared.

Disturbing cases of individuals who murder their own best friends and examination of the different factors that drove them to commit this heinous crime.

Stephanie McMahon and Triple H leads a team of collectors and WWE celebrities as they travel across the United States to find WWE collectibles.

In the City of Angels, everyone is striving for the unattainable high life, and some are willing to kill for it. Encompassing everything from beach communities like Venice and Malibu to the wealth of Beverly Hills and hip enclaves like Thai Town and Highland Park, Real Murders of Los Angeles exposes the dark underbelly of the city's glamorous façade. Follow the stories of those whose lust for fame and fortune led them to commit salacious, sinful, and scandalous murders.

Whether it's a cheating ex, a double-crossing co-worker, or the best friend who stabbed you in the back, it's human instinct to want to get even. Though most people don't act on this impulse, there are those who are consumed with getting even. For them, what starts as a nagging bitterness evolves into obsession and results in murder. This true crime documentary series profiles those stories of revenge, told through gripping interviews with the family members, community members, and law enforcement who experienced the events firsthand.

This is Your Life is a British biographical television documentary, based on the 1952 American show of the same name. It was hosted by Eamonn Andrews from 1955 until 1964, and then from 1969 until his death in 1987 aged 64. Michael Aspel then took up the role of host until the show ended in 2003. It returned in 2007 as a one-off special presented by Trevor McDonald, which to date was its most recent airing. In the show the host surprises a special guest, before taking them through their life with the assistance of the 'big red book'. Both celebrities and non-celebrities have been 'victims' of the show. The show was originally broadcast live, and over its run it has alternated between being broadcast on the BBC and on ITV.

Cellmate Secrets revisits some of the most infamous stories of headline-grabbing criminals. Actress Angie Harmon narrates the series, which reveals new insights and information as former friends, guards, cellmates and lovers give first-hand accounts of their time with the famed felons and defendants.

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The harrowing true story of how actress Eva LaRue and her daughter Kaya endured 12 years of terror at the hands of a relentless stalker. Operating from the shadows, he taunted and terrorized their lives while his identity remained a mystery, even to the FBI. In this gripping account, Eva reveals the constant fear, emotional toll, and the resolve, courage and resilience it took to protect her family.

Consummate world traveler Jean-Michel Dufaux gives viewers an inside take on their favourite celebrities as they recount their three most unforgettable voyages. Their tantalizing tales filled with memories, anecdotes, and a tinge of nostalgia are highlighted with travel photos and breathtaking images that will have many packing their bags before the show is over.

Chef David Chang takes his insatiable curiosity about food, culture and identity on the road, in the convivial company of fun-loving celebrity guests.

Pull back the curtain on bizarre double lives and see the real stories of men and women who thought they were happily married, until the day they uncovered a shocking secret about their spouse leading them to wonder who it is they really fell in love with.

Caitlyn Jenner's first public appearance since her transition included making an impassioned, heartfelt speech at the ESPY Awards about the need for understanding transgender issues and "accepting people for who they are." For her part, Caitlyn -- formerly known as Bruce Jenner -- eagerly welcomes the responsibility to educate people. Follow Caitlyn Jenner's life as a transgender woman, telling her intimate story as she seeks out her "new normal," while offering a better understanding of many of life's challenges. Most of all, Caitlyn looks forward to living for the first time as the person she feels she was born to be. The docu-series also explores what her transition means for the people closest to her, including her children and stepchildren, and how those relationships are affected.

Southern Fried Homicide probes the juiciest stories from down in the Bible Belt. Classic true crime is served up against a backdrop of Southern hospitality, etiquette and Christian values. Good ol' morals give way to cold-blooded murder in these grim tales of love gone wrong, business deals turned sour, families divided, and more.