Video duration: 748 seconds
Global video hits: 7552
This year marks the 150th anniversary of the first announcement of Darwin's theory of natural selection, the main driving force behind evolution. More than a century and half later his theories continue to be hotly debated, raising issues of Creationism and Intelligent Design, as well as what we should be teaching our children in schools about the creation of man.
Video duration: 1030 seconds
Global video hits: 13735
Riz talks to Brazilian author, lyricist and novelist Paulo Coelho.
Best known for his novel 'The Alchemist', Coelho's has sold more than 92 million books and his works have been translated into 66 languages in more than 150 countries around the world.
Video duration: 701 seconds
Global video hits: 1851
John Francis walked across the US for 22 years and refused to speak for 17 in protest over an oil spill in San Francisco Bay. Ed Begley Junior, a Hollywood actor who has appeared in more than 35 movies, has been an environmentalist for more than 30 years and is the author of a guide on living an eco-friendly life. They both join the Riz Khan show to discuss their environmental activism.
Video duration: 636 seconds
Global video hits: 886
This Riz Khan show will look at political turmoil in Thailand, where the country goes from here and whether or not it will be plunged into a constitutional crisis.
Video duration: 999 seconds
Global video hits: 3709
Riz Khan talks to Bjorn Lomborg, the author of 'The Skeptical Environmentalist' who challenges widely held beliefs that the state of the environment is worsening.