Late, great actor DeForest Kelley talks about the success of the "Star Trek" series and what it's like to be an aging actor at the time of the release of "Star Trek V: The Final Frontier". This includes a great clip from the original series featuring William Shatner, Leonard Nimoy and actress Joan Collins. Enjoy!

What does the Holocaust have to do with us, anyway? In part two, Roderick Miller, the chair of the nonprofit organization Tracing the Past, gives a talk at TEDxVienna about the Holocaust and contemporary Europeans' perception of the space they live in.

As Miss South Africa 2014, Rolene Strauss was not content with being merely a model, she wanted to be a role model. In this interview at Maslow Hotel in Sandton, Rolene explains how she was destined from birth be a Miss South Africa. (Video: Motshwari Mofokeng)

What does the Holocaust have to do with us, anyway? In part three, Roderick Miller, the chair of the nonprofit organization Tracing the Past, gives a talk at TEDxVienna about the Holocaust and contemporary Europeans' perception of the space they live in.

What does the Holocaust have to do with us, anyway? In part four, Roderick Miller, the chair of the nonprofit organization Tracing the Past, gives a talk at TEDxVienna about the Holocaust and contemporary Europeans' perception of the space they live in.

In the war zones of Liberia and Congo, four volunteers with Médecins Sans Frontières (MSF) struggle to provide emergency medical care under extreme conditions. With different levels of experience, each volunteer must find their own way to face the challenges, the tough choices, and the limits of their idealism.

The Prince of Wales and The Duke of Cambridge talk about the unprecedented levels of killing of endangered species like elephants, which are killed at a rate of 100 per day. They also highlight the grave threat the illegal wildlife trade poses to the economic and political stability in many areas around the world and make a plea for the public to support those organisations that are working to put an end to the trade.

In this second half, The Prince of Wales and The Duke of Cambridge follow up by sharing some of the things that are being done to combat the wildlife trade and encouraging the listener to take action. They end by speaking the phrase "Let's unite for wildlife" in Vietnamese, Mandarin, Swahili, Spanish, Arabic and English.

Hall of Famer Scottie Pippen discusses Chicago's bitter rivalry with the New York Knicks and one of the greatest dunks in NBA history.

What actually are planets, asteroids and dwarf planets? Here, Dr. Robert Hurt from the Spitzer Science Center in California, touches upon this intriguing question. In addition, he addresses the status of Pluto and how it recently came to pass that, what was once considered our solar system's most distant planet, has recently been demoted and... why? Enjoy!

Jimmy Carter interviews Chevy Chase as they talk together about his role as Clark Griswold in the National Lampoon's Vacation movies. Carter guesses that Chase has spent at least two years of his life playing Clark and that he must share some qualities with him.

A film about the global sustainability work of The Prince's Charities, founded by HRH The Prince of Wales.

President Obama drops by a meeting with YouTube personalities to learn about how they're using YouTube to connect with an audience of millions of people and to discuss why it's important for young people to visit HealthCare.gov and learn more.

It is some men's great dream to explore the world. Today we present Solar Impulse 2, an aircraft, powered only by the sun that will attempt the first solar flight around the world. What is Solar Impulse? The only airplane of perpetual endurance, able to fly day and night on solar power, without a drop of fuel. Get more information here about the project.

The Prince of Wales' Accounting for Sustainablity project is offering two concrete intervention options for companies and their policies, which lead not only to tangible profits, but also help to reduce the supply chains.