6.50 Maths: Modelling Cranes
7.15 Canal and Harbour Modelling
7.40 Geology: The Capitan Reef
8.05 Electrons and Atoms 8.30 Maths: Modelling Turkeys 8.55 Insat - Implications for a Nation
9.20 The Optical Lens 9.45
Mental Handicap: 'No Problem's too Big' 10.10 Images: Seeing with Sound 10.35 Education for Adults: Limerick Lessons 11.00
Policy-Making in Education 11.25 Environments: The Heat is On
11.50 Head Start: Children of the Dream 12.15pm Romantic Poets: Prometheus Unbound 12.40 The Social Impact of Rapid
Industrialisation 1.05 The Golden Rule 1.30 Modern Art: Pollock
1.55 Geometric Topology: Flows
2.20 Ecology: Flevoland Polders

A 93-part epic from India.
61: The Pandavas celebrate the end of their long exile. (In Hindi with English subtitles.
Rptd tomorrow at 12.05am on BBC1)

The Pole Star. Polaris is probably the most famous star in the night sky. In this programme Patrick Moore discusses not only its position in the sky but also its nature - Polaris is so far away that we see it as it used to be at the time of the Crusades.
0 INFORMATION LINE: 0[number removed].
Calls charged 34p per minute cheap rate and 45p per minute other times.

John Huston 's classic adventure starring
Katharine Hepburn
Humphrey Bogart 1914: her home destroyed by invading
Germans, a prim missionary finds an unlikely saviour in the scruffy, gin-drinking captain of The African Queen. Together the indomitable pair brave dangerous rapids, poisonous reptiles and sharp-shooting soldiers. Extracts from
Katharine Hepburn 's forthcoming autobiography are being published exclusively in Radio Times. See page 29.
: TELETEXT SUBTITLES: page 888 • FILMS: pages 35-4

Last of the series in which a UK citizen and a European counterpart compare their work experience.
Farmers. Portuguese farmer Paula Valente finds the lambing season on Donald McGillivray 's Perthshire farm less than idyllic. Likewise,
Donald discovers a different way of life in Portugal. Producer Mary Sprent
• TELETEXT SUBTITLES: page 888
0 BOOKLET: 'Working in the European Community - New Opportunities', send cheque/PO for 1.75, payable to BBC Education, to [address removed]

To launch BBCtv's nationwide stereo transmissions , more than 500 musicians come together for a performance of Mahler's monumental Symphony of a Thousand, conducted by Klaus Tennstedt and described as 'incandescent' and 'revelatory'. The featured soloists are
Julia Varady , Jane Eaglen , Susan Bullock , Trudeliese Schmidt , Jadwiga Rappe ,
Kenneth Riegel , Eike Wilm
Schulte and Hans Sotin , with the London Symphony Chorus, Eton College Boys' Choir and the London Philharmonic
Choir and Orchestra.
Director Kriss Rusmanis Producer Donald Sturrock 0 STEREO

With Moira Stuart.
Followed by Weather

In an extraordinary June ballot, the inhabitants of Leningrad chose to revert to calling their city by its original name of St
Petersburg. Charles Wheeler introduces a week of programmes devoted to the history and culture of Russia's foremost European city. This screening of award-winning German director
Thomas Kufus 's film, marks the 50th anniversary of the Siege of Leningrad, one of the bloodiest of the Second World War.
• TELETEXT SUBTITLES: page 888 * DOCUMENTARY: page 8

Blockade
When the German army surrounded Leningrad in 1941, it was the beginning of a terrible 900 days of isolation for its citizens. On a meagre bread ration and with temperatures of minus 40 degrees celsius frozen corpses littered the streets. There was no light or water. It is now estimated that at least
1,200,000 people died. This remarkable German film uses previously untransmitted footage of the siege which shows the Russian suffering inflicted by the Nazis. Director Thomas Kufus Series editor Roy Davies
* TELETEXT SUBTITLES: page 888

Coverage of the men's marathon from Tokyo. Also, highlights of the penultimate day's competition including the finals of the women's
1500m and the men's 3,000m steeplechase. Presented by Desmond Lynam.
Executive producer Martin Webster Editor Brian Barwick