7.40 San Francisco Railway (2)

8.5 Earth History (1)

8.30 M101/27 Group Theory

8.55 Modulation and Noise

9.20 Computing - String Processing

9.45 Time Base Generator

10.10 Maths - Algebra, Topology

10.35 The Golan Heights (2)

11.0 People and Organisations

11.25 Surrealism and Film

11.50 Mechanics - Rotating Frames (1)

12.15 Lyell on Etna

12.40 Urban Poverty and its Remedies

1.5 Educational Research Methods

1.30 City of Coventry

The John Player League Somerset v Middlesex
With only three more games to play, Somerset must win this match to keep up their challenge to win the League. Their continued good form in the one-day game, aided by top players Viv Richards and Ian Botham , ensures a fine match.
PETER WALKER introduces the programme, which includes news of today's other fixtures:
Derbyshire v Essex
Kent v Gloucestershire
Leicestershire v Lancashire
Northamptonshire v Hampshire Surrey v Glamorgan
Warwickshire v Sussex
Yorkshire v Nottinghamshire
Commentators at Taunton JOHN ARLOTT and JIM LAKER
Television presentation
HUW JONES and BILL TAYLOR Series producer BOB DUNCAN

A digest of the news of the week and other world matters of interest seen by news cameras around the world. The interesting, the picturesque, the important and the dramatic plus a visual commentary for those who cannot hear, with Peter Woods
Editor BILL NORTHWOOD

The Spirit of Carnival
Narrated by ELIZABETH BELL
The twin Carnivals of Rio and Trinidad, two of the most spectacular and gloriously pagan festivals ever to be celebrated in modern times. The Portuguese took the ' entrudo', a ritual last fling before Lent, to Brazil. The French took Mardi Gras to Trinidad. The African slaves in both countries gave it the spirit to survive for over 300 years.
Today Carnival lives on - a magnificent spectacle of fantasy and illusion, an explosion of soul-stirring samba and steel drums, and a deeply moving pageant in which thousands of people escape into a dream world of their own making.
Film cameraman NIGEL MEAKIN Producer BOB SAUNDERS
Series editors MICHAEL ANDREWS and ANTHONY ISAACS Preview: page 13

Ten years ago today, half a million men, tanks and armour from Russia and her Warsaw Pact allies invaded Czechoslovakia and put an end to Alexander Dubcek 's brave experiment - to give communism a human face. For the few brief months of the Prague Spring, Czechs and Slovaks lived without censorship, and with a degree of political freedom that was unique in Eastern Europe.
Keith Kyle recalls the events of 68 to discover why the Czech experiment went wrong and reports on life in Czechoslovakia today, under the harsh regime the Russians have imposed.
Film editor JOHN NASH Associate producer JOHN WALKER
Producer PETER KENYATTA Executive producer
FRANK SMITH. Preview: p 13
(Prague 1968 on Radio 3, today at 9.40 pm. The Invasion of Czechoslovakia on Radio 4, Monday at 11.5 am, repeated Thursday at 7.45 pm. The Price of Freedom on BBC2, Tuesday at 10.50 pm)

A weekly series of visits to music festivals around the world. Festa in Montepulciano Hans Werner Henze's
International Workshop
Three years ago the composer Hans Werner Henze tried, with international artists and the Communist town council of Montepulciano, to bring back cultural activities which had been drained out by industrialisation. In this film, made at the birth of the event, HENZE recreates the atmosphere of enthusiasm and chaos which reigned. Including extracts from:
Il Palazzo Zoologico , an opera designed by local schoolchildren, directed by VOLKER SCHLÖNDORFF
Don Quixote, PAISIELLO'S opera re-scored to include a local brass band Il Turco in Italia, ROSSINI'S opera Concerts by Julian Bream Peter Maxwell Davies Gerald English
... cleverly structured film (OBSERVER) sparkling and thoroughly enjoyable
(SUNDAY TIMES)
Producer PETER ADAM

Magoo's Ice Box

by LEO TOLSTOY
The Classic Serial
Dramatised in eight parts by DONALD WILSON starring Nicola Pagett
Eric Porter , Stuart Wilson Part 4
Anna and Vronsky can see no way out but Karenin decides on positive action. Meanwhile Kitty and Levin meet each other accidentally. Levin, however, cannot bring himself to take further steps. Cast in order of appearance
Producer DONALD WILSON
Executive producer KEN RIDDINGTON Directed by BASIL COLEMAN

Weather

continues the new season of films of the 70s
Tonight starring
Walter Matthau , Anne Jackson
Connecticut housewife Victoria Layton feels that her routine life and staid marriage are making her boring and unattractive - something which is compounded by the delivery boy failing to notice she is naked when he brings the groceries. Discovering that her husband occasionally procures 100-dollar call-girls for a famous movie star she decides to enjoy herself and increase her pocket money - with both moving and richly comic results.
Written, produced and directed by GEORGE AXELROD. Films: page 11