Ends 12.50am. www.bbc.co.uk/bbcfour
Hot Spots: Chechnya Newsnight's Mark Urban explores the roots of the conflict in the Russian Republic of Chechnya, which date back to the 1850s. Hot Spots: Iran is tomorrow at 11.20pm. Producer Paul Mitchell ; Executive producer Farah Durrani
12.20-12.50 Gielgud at the BBC Actor John Gielgud 's special relationship with the corporation in a career spanning 70 years.
Producer Mark Bell ; Executive producer David Okuefuna