Actress Felicity Finch joins cave artists in their quest to paint underground chambers.
Muriel Gray learns what happens when pop music bumps into the business of politics.
23/30 Michael Morpurgo traces the making of Britain's Welfare State amid concerns for children.
3/5 The author heads to America to hone his skills, and picks up some bizarre advice.
Janice Forsyth examines the success and humanitarian work of the Soweto Gospel Choir.
24/30 How behaviourists and Freudians battled over upbringing techniques for children.