Philosophy Bites (with David Edmonds) - a series of over 200 interviews with contemporary philosophers. Also available here on iTunes. Over 15.6 million downloads so far.
Ethics Bites (with David Edmonds) - a series of 14 interviews with contemporary philosophers on different aspects of ethics. There is also a video about making the series and transcripts of all episodes. Made in collaboration with the Open University. Also available on iTunes and on iTunesU.
Bio-Ethics Bites (with David Edmonds) - a series of interviews with leading thinkers on ethical questions surrounding new technology and medicine. This is made in association with the Wellcome Trust and the Oxford University Uehiro Centre for Practical Ethics.
Multiculturalism Bites (with David Edmonds) - a series of 10 interviews with leading thinkers on issues arising out of multiculturalism. Made in collaboration with the Open University. Also available on iTunesU.
Philosophy: The Classics - based on my book Philosophy: The Classics, each episode is focused on a great philosophical book. Also available here on iTunes. Nearly 2 million downloads so far.
Everyday Philosophy - a monthly short topical podcast that is based on my (now defunct) column for Prospect Magazine. 22 episodes (on iTunes).
Reading Political Philosophy from Machiavelli to Mill (only on iTunesU here). I conducted the interviews on Machiavelli and Mill for this Open Unviversity course.
On Free Speech (a 20 minute talk based on my book A Very Short Introduction to Free Speech)
A short YouTube video about Free Speech.
Should cyclists stop at red lights? (interview on Resonance FM's The Bike Show)
On Ageing and Cicero (interview on BBC Radio 4 's You and Yours)
On Popularising Philosophy (interview on BBC Radio 4's Today programme)
Do We Still Need Enlightenment Values? (video, panel discussion at the Royal Society of Arts, 2010)
Liberalism Today (panel discussion from the Battle of Ideas, 2010).
Appearance and Reality: a series of short YouTube videos made for the Open University and featuring interviews with Derren Brown