6.5 Modern Art: Cubism, 2
6.30 Ferrous Metals in Construction
6.55 Biology: Pattern Formation
7.20 Science: The Periodic Table
7.45 How Viruses Reproduce

9.9 Encounter: Italy
A Country at Work
9.26 Twentieth-Century History Cold War - Confrontation
9.48 Maths at Work. 2: Young people use CSE maths: a clerk, sales assistant, process worker and sample cutter. Narrator KIERAN PRENDIVILLE Producer ROGER FRY
Series producer DAVID ROSEVEARE
10.10 Sex Education. Someone New The birth of a baby is an exciting event in any family, but it also marks the end of a long period of growth and development inside the mother's body. Using modern techniques, this programme for 8- to 10-year-olds shows how the baby grows inside the womb, and includes film of a birth. Producer DEREK LONGHURST
10.35 Update USA 2: Sun Belt City. Phoenix, Arizona, spreads outwards into the surrounding desert as industry cashes in on the 'pro-business climate' of the Sun Belt and people move from recession-hit northern manufacturing cities. CommentaryPETER FRANCE Producer LEN BROWN
11.0 Watch. Trees: 2
11.17 Computer Club
The Computer and the Mariner. Can a computer help to bring a large oil tanker into port? Presenter mari
PRICHARD Producer ROGER FRY
11.40 Mind Stretchers Calendars: The Problem
Problems with suggested solutions for 10- to 11-year-olds.
Presented by ANTHONY DANIELS Series producer DAVID TAFT
11.48 Unter Uns
Deutsche Dialoge: Was wir gem mac-hen; Beim Einkaufen ; Freizeit. Interviews and everyday exchanges in basic conversational German.
12.3 pm Pages from Ceefax
2.0 You and Me
A series for 4- and 5-year-olds. In/Out Introduced by MICHAEL MAYNARD and Duncan the Dragon
2.15 Near and Far. Local Park Producer ROBIN GWYN
2.40 Look, Look and Look Again
My Place. Historic buildings, and noise, reflections and movements are the basis of art projects.

An imaginary polytechnic is asked to give financial help to an ex-member of staff in trouble with a foreign government. A look at how members of staff respond; who decides to help, and where the money should come from.
Producer nick brenton
A BBC/Open University production

with subtitles, followed by Weather

Young people from throughout the country airing their views about topics and issues that matter to them. Introduced by John Craven
Does television give young people a bad example? Is there too much violence and sex shown? Adults often have their say. But what do young people think? They put their beliefs to David Yip, star of The Chinese Detective; Beverly Anderson, formerly of Sixty Minutes and a former head teacher and stem critic of the standards of television; Chris Dunkley, television critic of the Financial Times and researcher Cedric Cullingford.

The Grand Final
A canoeing competition for the BBC Paddles Up trophy.
Seven of the world's top canoeists, including two lady competitors, face a new and tricky course on the River
Dee at Llangollen, for the title of Paddles Up Champion. Commentators
ALAN PARRY and JOHN GOSLING
Organised by the British Canoe Union Assistant producer REG PERRIN Producer JOHN G. SMITH
BBC Pebble Mill

The feature film starring
Robert Ryan and Dean Stockwell
This engaging fantasy was the first film directed by Joseph Losey , later to become internationally known for such films as The Criminal, Accident and The Go-Between. The film tells of the mishaps and adventures of a small boy - orphaned in the war - whose hair turns green. Through the attention paid to him he is able to preach against the evils of war....
Screenplay by BEN BARZMAN and ALFRED LEWIS LEVITT
Produced by STEPHEN AMES
Directed by JOSEPH LOSEY. Films: page 14

In 1977 hundreds of Hmong tribes-people swept out of the hills of Laos, bringing horrendous accounts of atrocities committed against them with a new biological weapon called 'yellow rain'. Since then more reports have come in that the Russians are indeed importing deadly fungal toxins into SE Asia and spraying them on helpless remote villages. Their allies, the Vietnamese, are accused of using them in Kampuchea.

If these American allegations are true it means that the Soviets have broken the treaty designed to rid the world of biological warfare. Has that spectre risen again?

Horizon went to Thailand, Kampuchea and Laos to investigate these claims, and pieced together the clues that lead to a quite different explanation - involving the bizarre behaviour of Asian honey bees...

The BBC Television International Sheepdog Championship
Introduced by Phil Drabble with Eric Halsall
The close working bond between shepherd and sheep-dog is seen when the trials continue above Loch Lomond. A former supreme champion today heads the Welsh team, whose members farm in the Brecon Beacons, at the foot of the Cambrian Mountains and in the Vale of Clwyd. Heat 2: Wales
WYN EDWARDS with Bill EVAN HOPKINS with Fly LYN LEWIS with Mirk
Technical co-ordinator ROY SMITH Director MICHAEL KERR Producer IAN SMITH

Introduced by Maria Aitken
The conversation game in which well-known public personalities are invited to reveal some of their private memories, pleasures and treasures.
Tonight Jill Craigie and Terry Jones compare their love of Wales and discover a career in common.
Music by PETER SKELLERN with NIGEL KENNEDY (violin)
Assistant producer PETER ESTALL Director PHILIP CHILVERS
Producer FRANCES WHITAKER

The cosmopolitan character of Israel is reflected vividly in the variety of food in the country's markets and restaurants, as Glynn Christian discovers on his Mediterranean cruise. He also goes fishing in the Sea of Galilee.

12.5 Cognitive Styles
Three children from the same class are invited to do a psychological test for 'impulsivity' and the results are compared with their performance several years before, which was also recorded.
12.30 The Impact of Micro-Computers