Focusing on controversies from the recent past, David Dimbleby examines the way the BBC has dealt with power and how it has preserved its independence.

David Dimbleby explores the issue of trust in the BBC in the context of two crises: the Hutton Inquiry after the death of David Kelly and the case of Jimmy Savile.

David Dimbleby asks how best the BBC can seek to serve all its audience, and looks at issues such as the Falklands War and race relations where its impartiality has been tested.