In 2003 Johnathan Miller finished the production of the excellent three part documentary series for the BBC Athiesm: A Rough History of Belief, for that series he conducted interviews with six leading atheist academics. Whilst some of the footage obtained was used in that original series, the quality of the discussions were good enough to standalone as another series.
The result is The Atheism Tapes, screened by the BBC in 2004. Each episode consists of one in depth interview, each with a leading academic, and all are available to watch here on Documentary Vine. Navigate via the episode tabs below the video embed, or use the link list below.