Big Ideas is a weekly radio program on ABC Radio National which presents lectures or panels on ideas or issues of particular importance. It is broadcast on Sundays at 5:00 p.m. and repeated on Saturdays at 7:00 p.m.; in addition, it is available as a podcast from ABC Radio National.
There is no fixed host for the program; various ABC broadcasters have introduced the lecture or panel.
Until the end of 2014, ABC TV also aired a television edition of Big Ideas at 11am Tuesdays & Wednesdays (after ABC Schools TV or children's programs in school holidays), hosted by Waleed Aly.
2008
Does Secularism Provoke Religious Extremism?
The Annual Acton Lecture on Religion and Freedom, given by Tom Frame, an Anglican bishop.
The Reith Global Debate - Free To Speak?
What do Onora O'Neill, Wole Soyinka and Jeffrey Sachs, recent Reith Lecturers for the BBC, discuss freedom of the press.
Relations on a finite planet
Lord Robert May, a former head of the UK Office of Science and Technology, spoke on the effects of overpopulation and global warming.
Global finance: big, bloated and dangerous?
Dr. Paul Wooley spoke about the challenge of global finance.