The opportunities and threats facing the Welsh language at present and in the future. Last in the series.

Profiling the American who was hired by London mayor Ken Livingstone to revamp the tube network.

A global roundup.

In the first of a new series,Michael Portillo invites an eclectic mix of guests - including novelist Jeanette Winterson, anti-hunt campaigner Lauren Booth and columnist Rod Liddle - to discuss issues concerning the future of the countryside.

Frederick Wiseman's documentary film, showing in the Storyville strand, provides an unblinking portrait of the circumstances in which this crime occurs, and examines what is being done to alleviate it. Filming in Tampa, Florida, Wiseman follows the police as they respond to calls, and ventures inside the Springs, the principal place of shelter for victims of domestic abuse.

Augustin Dumay and Maria Joao Pires perform violin sonatas by Beethoven.