6.40 Ocean Crust. 7.5 Occupations: Brian's Britain. 7.38 Cyanide.

(For details see BBC1 at 3.55 pm)

A look at some of the furniture and craftwork made at this famous centre for contemporary design in Germany in the 20s.
Producer EDWARD HAYWARD
A BBC/Open University production

helps you plan your weekend by previewing daytime programmes of special interest from the Open University. On Saturday morning Marking Time explains why space-men embarking on major journeys could return to earth only to find their friends and families had aged while they had not. Also the life of Edward Gibbon is recounted from letters and diaries. On Sunday there is a description of The Evolution oj Fishes.

The classic serial in 12 episodes 4: The Sky Patrol
(For cast see page 31. Episode 5 next Monday)

Presented by Charlotte Allen Music Without Tears
Tonight's teams are challenged to do for music what the pocket calculator has done for mathematics. Accepting the challenge are teams from Oxford, London and Burton-on-Trent.
Joining Heinz Wolff to judge their musical prowess is Terry Pamplin from London College of Furniture.
Studio director CIIARLES hufp Producer PETER bruce

Seven programmes
4: Beginning of Part One
Many motorcyclists were extremely sceptical about the old Ministry test; now the new rider is faced with two tests. This week's programme looks at the new Part One test and at how a group of riders in Altrincham prepare for their advanced motorcycle test. And we see how the Ministry examiners are trained.
Film editor shelagh BRADY Producer ian WOOLF

Charley Squash Goes to Town
A Red Indian boy tries to find his place in the world outside his reservation.
Story and design by DUKE redbeard for the NATIONAL FILM BOARD OF CANADA

The atmosphere in the General Office is more than a little tense, but Trowbridge-in solving one problem - unexpectedly finds the answer to a second.
Serial written and devised by PHIL REDMOND
Title music by martin cook
Senior cameraman GEOFF FELD Designer PAUL MUNTING Producer BRIAN SPIBY
Director JEREMY summers

with subtitles for the hard-of-hearing, followed by Weather

A series of five programmes exploring the hobby of fish-keeping and the range of creatures that can be adopted successfully by the home aquarist.
4: Bring in the Marines
The secret of keeping interesting fish and invertebrates from around our own shores is maintaining the quality of salt water in the aquarium.
Narrator DEREK JONES
Film editors joiin keenan, STUART DAVIDSON Assistant producer OLGA EDRIDGE Producer BRENDA horspield

Clare Francis presents the second of two special World About Vs programmes in which expedition film-makers compete for The Mick Burke Award
Six groups are competing for the trophy given -in memory of BBC climber-cameraman Mick Burke -to the makers of the best amateur expedition film.
In last night's programme, three films were shown.
Tonight the remaining three films take us to:
British Columbia, on a journey by kayak down the Fraser River;
Forbidden Canyon, on the borders of Arizona and Utah;
Sri Lanka, to track flying foxes by radio.
The judges' decision will be announced and the trophy presented to the winning team at the end of the programme.
Film editor joiin nasii
Studio director MIKE catherwood Producer Patricia wood

A duel of words and wit between Arthur Marshall
Diane Keen , Ian Ogilvy and Frank Muir
Hannah Gordon , Patrick Garland Referee Robert Robinson
Devised by MARK GOODSON , BILL TOOMAN Directed by ALAN J. W. BELL. Producer PAUL CIANI

A Forty Minutes documentary series in seven parts, filmed at Harefield Hospital.
6: A Matter of Life and Death
The news that John Wade has suddenly and unexpectedly died a year after his operation is a devastating blow. It is a grim reminder, were one needed, that however swift the recovery, continued existence is a fragile thing when threatened by the twin curse of the post-operative period: rejection and infection. In this knowledge, Bruce Anderson is allowed home 26 days after his operation. His recovery has been remarkable, and the family is overjoyed. But Bruce Anderson 's life can never be completely normal, for his body will never completely accept the alien heart.
Film cameraman ANTHONY JACOBS Film recordist BRUCE GALLAWAY Film editor DICK PULL
Executive producer ROGER MILLS Producer louise PANTON

takes it own look at the rock scene with news, views, clues and reviews.
In the studio: Chris Rea
Vintage OGWT: Alex Harvey (1973) plus films and interviews
Introduced by Anne Nightingale and David Hepworth

The Old Grey Whistle Test - Test Pressing (record BELP 017, cassette ZCF 017), from retailers

Presenters PETER SNOW, john TUSA and DONALD maccormick bring you the major events of the day, with analysis that explains their significance. From the programme's team of correspondents, film reports shot in Britain and around the world on the issues and topics which are making the headlines. JOAN BAKEWELL has first news of stories from the arts; DAVID ICKE and MARSHALL LEE have the stories from behind the world of sport.