7.05 Electron Microscopy

7.30 Cell Membrane Structure

9.15 Engineering Craft Studies Joining: Fastening
9.38 Science All Around Bottles
10.0-10.15
Quatre Coins de la France
3: La Vie en Province
10.23 Gwlad a Thref: Dyn 3: Ogofau Perigord
Cyflwynydd MEIRION EDWARDS Cynhyrchydd R. DILWYN JONES
(Ail-ddarllcdiad. The Caves of Perigord) BBC Cymru/Wales

Introduced by David Ashton.

11.0 Maths Workshop: Stage 1 Circles and Spirals
.
11.23 Words and Pictures
A series for 6- and 7-year-olds The Cat Who Forgot
11.40 British Social History The Palace of Glass
.
12.5 pm Ensemble
A 24-part French course for beginners: programme 18

Weather KEITH BEST

with BOB LANGLEY , DONNY MACLEOD
MARIAN FOSTER and DAVID SEYMOUR including
Claire Rayner 's Family Advice and the Pebble Mill Cyclo-Cross Championship featuring Britain's top cyclo-cross riders in an end-of-season challenge race in the grounds of Pebble Mill - including the presentation of a special trophy by Rt Hon Denis Howell , imp.
Editor TERRY DOBSON

by PATRICK and MOLLIE MATTHEWS Told by RICHARD BAKER

Mr Daydream by ROGER HARGREAVES
Told by ARTHUR LOWE

2.1 Watch! Picture Writing
2.18 Europe from the Air Clusters
2.40 Focus
Five programmes on adolescence 2: A Spanner in the Works by GEOFFREY CASE
Frank, an apprentice mechanic, is confused by the conflicting attitudes to rules in the garage. He repairs a car then runs into trouble. But everyone is partly to blame ...
With ROGER MCGOUGH , NORMAN BIRD JOHN RINGHAM , MICHAEL TARN Producer DAVID ALLEN

The programme about police affairs; including Crime Line, the ' hot line' between police and public: [number removed]
Introduced by David Seymour with Mike Dornan
Director KEITH ACKRILL Editor BRIAN GIBSON BBC Birmingham

Story: The Cat who Followed his Nose. Written by ANN REAY illustrated by GRAHAM MCCALLUM Presenters:
JULIE STEVENS , JOHN GOLDER

with Ronald Pickup
The Moon on the Water by NINA WARNER HOOKE
Today: Carla and Carlo

First Semi-Final
Michael Rodd puts the questions to the winners from the first four programmes. They will be looking at scenes from The Zoo Robbery, Great Expectations, and the Best of Walt Disney's True-Life Adventures.
Director DES SISSONS
Producer JOHN BUTTERY BBC Manchester

with Kenneth Kendall Weatherman

Look North, South Today
Look East, Midlands Today
Points West, Spotlight South West present news and views in your region tonight. Then at 6.20
MICHAEL BARRATT , FRANK BOUGH BOB WELLINGS and DILYS MORGAN present some of the more interesting stories of life in today's Britain including Consumer Unit with Valerie Singleton and Richard Stilgoe
Deputy editor STUART WILKINSON Editor JOHN GAU
(Regional details as Monday)

The song which will represent the United Kingdom at The Hague for the Eurovision Song Contest will be chosen this evening from the 12 finalists, who will perform live before an invited audience in the Royal Albert Hall , London. Juries from 14 BBC regions will vote for the winning song.
During the voting procedure the cast of Ipi Tombi, the West End hit musical, will present some of the most exciting music to come from the continent of Africa. Introduced by Michael Aspel with ALYN AINSWORTH
AND HIS ORCHESTRA
Sound CHRIS HOLCOMBE Lighting TOMMY THOMAS
Designer ROBIN TARSNANE Producer STEWART MORRIS
(The ' Ipi Tombi ' Company is appearing at Her Majesty's Theatre. London)

on behalf of the Labour Party (Also on BBC2)

with Richard Whitmore and Richard Baker ; Weather

features ' live ' boxing
The European Featherweight Championship
Elio Cotena (Italy) v
Vernon Sollas (Great Britain)
Commentator HARRY CARPENTER
SOLLAS, aged 21, the British title holder, won six times inside the distance in 1975, and a month ago was voted Britain's best young boxer of the year.
COTENA, aged 30, the European champion, took the title a year ago and has successfully defended it twice.
Live boxing from the York Hall, London TV presentation BOB DUNCAN Producer MARTIN HOPKINS Editor JONATHAN MARTIN

A programme in which SUE LAWLEY and DENIS TUOHY talk to interesting people about themselves and their lives and look at events of the day which affect us, with DONALD MACCORMICK and reporters JOHN PITMAN , DAVID LOMAX
PHILIP TIBENHAM , DAVID JESSEL DAVID TAYLOR , VINCENT HANNA
JULIAN MOUNTER , MICHAEL DELAHAYE
Editor MICHAEL BUNCE