6.35 Pure Maths: Isomorphisms
7.00 Chemistry: What Makes a Reaction Go?
7.25 The Enlightment
7.50 Newton's Present-Day Success
8.15 Linkage Mechanisms
8.40 Music: Score Reading
9.05 The Ocean Floor
9.30 Questioning Assumptions
9.55 Language and Literature
10.20 Biology: Cell Structure
10.45 Maths: Trigonmetric Formulas
11.10 Genetics: Beyond the Double Helix
11.35 Earthquakes

Christopher Jones presents the week's best speeches and most telling moments. A look at the politicians at work in the House of Commons, the House of Lords and the Committee Rooms.
Then, how decisions made at Westminster affect different parts of the country. 0 CEEFAX SUBTITLES
12.35pm
Around Westminster
Sue MacGregor presents the political programme for the south and east. A weekly look at the work of the area's MPs and at how their decisions affect the world beyond the Palace of Westminster. With reports from David Brewer and Terry Dignan.
Regional producer VINCENT DOWD Network editor LYDIA HOWARD

A look at events and issues in higher education. This month, the role of research in universities. And part-time teacher training - is any available?
Director PETER CHAMPNESS
Series producer JEAN ROWTON
A BBC/Open University production

(Details on Thursday 12midnight)

A Safe Sex for a Safe Seat
In Buxton, Jill and Mary have a goal. They are looking for a candidate for High Peak. For the first time, cameras are allowed behind the doors of a selection committee. Will a woman get through the first round?
Producer RUTH JACKSON
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Last in the series.
An updated edition of last Wednesday's Reportage. Producers JANE BECKWITH and EMMA WILLIS (R) revised

Embassy World Indoor
Bowls Championship 1990
The title and E20,000 in prize money are at stake this afternoon over the best of five sets. For the runner-up, it's £11,000 and dreams of what might have been.
David Icke is at rinkside seat to introduce the action.
Commentators: David Rhys Jones and Jimmy Davidson. Summarisers:
John Bell , Mal Hughes and David McGill. Television presentation: KEITH MACKENZIE and PETER HAYWARD
Producer KEITH PHILLIPS

Featuring
Wales v Scotland
France v Ireland.
Scotland, in with a chance of the Grand Slam, play the British Coal international in Cardiff, where they have won twice in the past decade. Can Wales, who have lost their opening two matches, draw inspiration from their home crowd? No chance of a championship for either
France or Ireland, who meet in Paris, but an opportunity to rebuild for the 1991 World Cup. Introduced by Chris Rea. Studio guests: Ian Robertson and Bill Beaumont.
Commentators:
Bill McLaren ,
Nigel Starmer-Smith , Eddie Butler and Brendan Mullin. Executive producer
JOHNNIE WATHERSTON

Jonathan Dimbleby reports from Yaroslavl on the day of the Russian Republic's elections. It's five years since Gorbachev took power to try and reform Russia: but in the process both the Communist party and the Soviet Union itself may be destroyed. Can Gorbachev hang on to them as well as reform? His critics, including Yegor Ligachev and Boris Yeltsin , give their views, along with the ordinary
Russian voters who will now decide the party's fate.

An eight-part natural history of North America.
2: Confronting the Wilderness In summer the northern land now known as Canada swarmed with biting flies. In winter it was a place of aching cold, echoing to the calls of ravens and howls of wolves. But this endless maze of forests and secret waterways was also home to innumerable beavers, lynx, otters and black bears - all with soft, thick fur. In the 17th-century, these lustrous pelts became the lure for exploration as French and English traders rivalled for business with Indian trappers.
Narrated by Alan Ereira. Music MARTIN KISZKO
Produced by NED KELLY and SUSAN WESTERN
Executive producer PETER CRAWFORD BBC Bristol
* BOOK: £1 7. 95 from 15 March from booksellers
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A series by Michael Palin and Terry Jones. Roger of the Raj
Pubescent Roger Bartlesham comes of age in the turbulent India of 60 years ago, when he is driven towards the most deplorable act known to the British army.
Starring Michael Palin with Richard Vernon
Joan Sanderson , Jan Francis John Le Mesurier
Roger Brierley
Allan Cuthbertson
David Griffin , Charles McKeown David Warwick
Michael Stainton
Ken Shorter , Douglas Hinton and Dorothy Frere. Designer NIGEL CURZON
Directed by JIM FRANKLIN (R)

A series of films on British
Airways and its rivals in the 90s. 1: Jet Jockeys
It's the job every small boy dreams of, but the pilot's role is changing fast. In Jet Jockeys cameras are for the first time in the cockpit for BA's
22-hour London to Sydney flight, and with the pilots off duty in Bangkok. What personal and professional problems do pilots face? Is the job as glamorous as it seems? How do pilots combat fatigue on the flight deck? Will the day come when air traffic controllers take over and the jet jockeys no longer fly their own aircraft?
Narrated and written by Michael Dean.
Executive producer JEREMY BENNETT Producer LAURENCE REES
* WODDIS: page 74

Clive's guests this week include Christopher Hitchens , the radical British journalist now based in the States, and the Hon Christopher Monckton , former member of the Prime
Minister's Think Tank. Producer ELAINE BEDELL
Director DOMINIC BRIGSTOCKE

A new BBC film by Jim Hawkins from an original idea by Simon Thirsk.
Starring Catherine Neilson Suzanna Hamilton and Sean Bean Hull 1986: Jenny is a lively young woman but her husband's violent behaviour is crushing her spirit. A thousand miles away in Russia another young woman, Irina Ratushinskaya , is serving hard labour for writing poetry. When Jenny reads her poems, the images they create of Irina's life in prison affect her more than anyone understands. Hull:
Music by ROBERT LOCKHART Script editor COLIN LUDLOW Film editor ARDAN FISHER
Photography KEVIN ROWLEY Designer DON TAYLOR Producer TERRY COLES
Directed by MICHAEL WHYTE
* SHOW TIMES: page 17
* FILMS: pages 19-21
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Embassy World Indoor
Bowls Championship 1990 David Icke introduces highlights of this afternoon's singles final from the Preston Guild Hall.

With Antoine de Caunes.

Lush play live, and Snub talks to acclaimed 4AD sleeve designer V23.