Since her glittering coronation, Queen Elizabeth II has become one of the most powerful and respected leaders on Earth and has been on the British throne for 67 years. Historians, royal insiders and the wider family provide fresh insight into who the Queen and her family really are, and how they have navigated the sometimes-turbulent seven decades of her record-breaking reign.

1998-99 Discovery Channel TV series examining the various intelligence organizations of the world, including the Mossad, the NSA, and Scotland Yard.

Even though they are frequently seen flanking presidential convoys in their trademark dark suits and sunglasses, little is truly known about the insulated world of the United States Secret Service. National Geographic's Inside series delves deep into the inner workings of the secretive organization for an unprecedented behind-the-scenes look at the upper echelons of national security.

The documentary Inside Tolkien's The Fellowship of the Ring traces the journey taken by the characters in the classic novel. In addition to offering insight into the characters, the filmmakers show what real-life works shaped the author's imagination as he created one of the most beloved books of the 20th century.

Dispatches goes undercover in the secretive world of the people who decide what can and can't be posted on Facebook, exploring how their decisions are made and the impact they have on users.

A never-before-seen look at the incel community, an online subculture to which multiple mass murders and hate crimes against women have been attributed.

You've heard the conspiracy theories and seen the movies. Now find out what really goes on inside one of the world's most secretive government organizations ... The National Security Agency. Since its inception in 1952, the National Security Agency has been shrouded in secrecy; for years the White House denied its very existence. For the first time since 9/11 changed everything, cameras go beyond the closed doors of the NSA, deep inside the agency's 2.6 million square foot top-secret compound. Inside the NSA: America's Cyber ​​Secrets reveals the agency's critical role in protecting the country - from defending the US military from a cyber attack, to the hunt for Osama Bin Laden.

Documentary about the writing of the final part of the Lord of the Rings

For almost 200 years Cadbury had been the home of chocolate. Making a staggering 350 tonnes of milk chocolate a day. But it's far more than just a factory. From its very beginnings the company set out to change our country. Not just by giving a great taste to the nation, but like Willy Wonka's fictional creation, building a magical place for its employees to live, work and play in. But as we'll find out it's not all been a sweet story. Over the past 150 years the company's been rocked by scandal, its products spreading deadly Salmonella and the victim of one of the most hostile takeover bids in corporate history when it was poached by cheese maker Kraft

In this CNN Special Report, we discover what it means to be 13 in the age of social media. Most adolescents with access to smart phones are living their social lives online as much as they do face-to-face. Adults worry that teens are hooked on social media, but most have no idea what teens are actually doing online. Anderson Cooper hosts this acclaimed special.

This well-received British series, hosted by Grant McTavish, digs deep into the second volume of J.R.R. Tolkien's epic and, with the help of computer technology and the artistry of the Brothers Hildebrandt, looks at Middle's Earth's locales, language, cultures, residents and more. Tolkien expert Michael Stanton and historian David Doughan lend extra credibility to the analysis.

North Koreans are breaking down the barriers of the gulag state. Following covert filmmakers, this doc shows real life under the new leader Kim Jong Un, highlighting the contrasting ox-drawn farms to the glittering life of the elite in Pyongyang. The starving children on the streets are of artificial food shortages engendered by corruption. See how USBs, cell phones and DVDs from the South are transforming North Koreans' views of their world.

Explores Tolkien's classic fantasy/adventure novel The Hobbit and examines the story behind its conception.

From bargain to deluxe, Poundland are on a mission to transform their reputation and go upmarket, from investing millions on opening new stores and undergoing refits to launching new product ranges.

Exploring the £350m plane dubbed the White House in the sky.

There is a battle playing out inside your body right now. It started billions of years ago and it is still being fought in every one of us every minute of every day. It is the story of a viral infection - the battle for the cell.

The ancient forests of the Pacific Northwest are home to giant trees and many secrets, which science is just beginning to understand. But these forests are at risk of disappearing. In British Columbia on First Nation territory, a small band of forest defenders are risking life and liberty to protect some of the last remaining ancient forests.

During the Cold War the United States developed a new spy plane that would travel at an altitude of 70,000 feet and track the expansion of nuclear arms in the Soviet Union.

Filmed over one year, this four-part series reveals the spectacular beauty of England's largest forest, Kielder, as it changes through the seasons. Situated in one of the wildest and most remote parts of the country, it's home to some of Britain's greatest and most secretive wildlife, from red squirrels to pine martens, feral goats to water voles and a variety of birds of prey. Despite its rich collection of wildlife, Kielder Forest didn't even exist one hundred years ago.

A Spanish orchestra conductor deals with the mysterious disappearance of his girlfriend.