9.52 Look, Look and Look Again: Working Drawings
Children and an adult artist find interest and subjects for drawing in old machinery.
(R) (e)

10.15 Look and Read: Dark Towers: 5: The Old Coach House
by Andrew Davies
A reading series for 7- to 9-year-olds based on a humorous ghost story in ten episodes.
(R) (e)

10.38 Investigating Science: Measurement: Made to Measure
A look at the importance of measurements in science. Why they need to be precise and unambiguous, and why they need to be based on internationally agreed standards. 'If you cannot measure it,' said Lord Kelvin, 'then it is not science.'
(R) (e)

11.00 Watch: Entertainment: II
Julian Rumball, a puppeteer, shows Jayne Griffiths and Tony Neilson different kinds of puppets and how they work.
(e)

11.18 Wondermaths: 5
On board the spaceship Investigator, Stella is puzzling over a skittle problem when the ship is hit by lightning. 'Control' starts to flash up a strange number sequence. What is the connection between that, the skittles puzzle and the overheating fuel cells? An investigation into triangular numbers provides an answer.
(e)

11.35 MI 10: Mathematical Investigations
Fly on the Wall
Making, and unmaking, a cardboard box.
followed by Projections
From three dimensions into two - exactly how?
(R) (e)

12.00 Maths Topics: Trigonometry: 5
Graphs of sine, cosine, tangent, Negative angles.
(R) (e)

12.20pm Media Studies: Making the News
News is as much a process of selecting, editing and 'packaging' as any other television programme. Go behind the scenes of the BBCtv Newsroom and ask journalists their criteria for selecting and presenting news stories.
(R) (e)

12.50 Micro File 2: First Steps
A compilation of items from the recent series Micro Live.
(R) (e)
For programme notes send A4 sae enclosing PO or cheque for 75p to [address removed]

A See-Saw programme
with Fred Harris
(R)

1.38 Outlook: Alternative Technology 3: Here Comes the Sun
(R) (e)

2.00 News and Weather

A series for 4- and 5-year-olds.
Jeni is having a terrible day, and spoils Dibs and Cosmo's game.
Maths at the seaside: floating and sinking.
Book: "The Very Busy Spider" by Eric Carle
(R) (e)

Today: The Conservative Party Conference 1987
Blackpool was the venue for this year's Conservative
Party Conference, and Sign
Extra brings you some of the highlights with both sign-language and subtitles. Presenter Clive Mason Interpreter John Lee (e)

The Rothmans Grand Prix Silvino Francisco v Gary Wilkinson
Jimmy Chambers v Stephen Hendry
Two more newcomers are featured in this afternoon's two fourth-round matches. Twenty-one-year-old
Gary Wilkinson from Nottingham faces South African
Champion Silvino Francisco. Walsall's Jimmy Chambers meets Scotland's snooker prodigy Stephen Hendry. including at
3.00 News and Weather

Regional News and Weather

Mildenhall
Where do blackbirds fly at more than 1,000 mph? The answer is the US Air Force base at Mildenhall, a square mile of America nestling in Suffolk, and the venue for tonight's edition of the world's fastest rock show. Presenters Jenny Powell , Tony Baker and relative newcomer Andy Laverty set out to 'have a nice day' among the B52s and burgers. Thrill to Jenny and the Jets, while ground control takes a more down-to-earth look at what's taking off in the British and American charts. Associate producer JONATHAN KING Production PETER HAMILTON

Comedy writer and comedian Ben Elton reveals his serious side when he is questioned by an audience of young people from around Britain. Presented by John Nicolson Researcher MARK HAGEN
Director DENNIS COSGROVE Producer STEWART LAMONT BBC Scotland

A series of eight programmes on making music in a modern rock band.
Keyboards, Synths and the New Technology
Presenters
Deirdre Cartwright (guitar),
Geoff Nicholls (drums) and Henry Thomas (bass) are joined by new recruit Alastair Gavin (keyboards) for a look at the development of electronic keyboards, synthesisers and digital effects. Also featured is a quick guide to analogue programming: getting different sounds and how to use them. With star comments from
Herbie Hancock , Jan Hammer , Tony Banks of Genesis and The
Communards Research
DAVID SINCLAIR. TIM LAMBERT Production assistant ADELE RAWNSLEY
Produced by CHRIS LENT
0 FEATURE: page 20 and INFO: page 95

A Prescription for Life? Every day in Britain a quarter million people take their fix of a drug which many doctors say is more addictive than heroin. None will be arrested - they're not breaking the law. The drug - a tranquilliser - is prescribed on the NHS. Zeinab Badawi examines disturbing evidence that Government advisers are warning doctors to stop prescribing the drug, yet last year over two million prescriptions were issued. Research LIZ MCCALLUM Producer DIANNE NELMES Editor COLIN CAMERON BBC North West
Next week you have the chance to take part in the studio debate on the risks of legalised drug-pushing. Ring the programme on [number removed]. Lines are open until 11.00pm tonight.
0 INFO: page 95

starring Ronnie Corbett with his special guests Hinge and Bracket
Marti Webb and Earl Okin
This programme with its mix of comedy, monologues, sketches and guest appearances is unsuitable for people of a miserable disposition. Indeed certain scenes of uninhibited jollity and full-frontal mirth may prove offensive to the seriously glum.
Written by BARRY CRYER ,
SPIKE MULLINS , LAURIE ROWLEY , NEIL SHAND Script associate NEIL SHAND Music by SIMON BRINT
Make-up designer DORKA NIERADZIK Sound SCOTT TALBOTT Designer DONAL WOODS
Produced and directed by MARCUS MORTIMER

A Strong Man in Egypt
(Giovanni Belzoni 1778-1823) Presented by David Drew
Giovanni Belzoni was a two-metre-high Italian strongman, who made three remarkable and controversial journeys up the Valley of the Nile between 1815 and 1819. He has been called a plunderer and a robber because of the magnificent collections of Ancient Egyptian artefacts he amassed and sent back to
England. But Belzoni awoke in Europe an interest in Egyptology that has never died.
David Drew travels to the tombs and temples rediscovered by Belzoni: the temple of Rameses II at Abu
Simbel, the temples of Philae, the interior of the Pyramid of Chephren and, still the most spectacular in the whole of Egypt, the tomb of the Pharaoh Seti I - sites which sparked an international war of plunder.
Photography JOHN HOWARTH Film editor LES NEWMAN
Series editor BRUCE NORMAN ProducerDEREK TOWERS
* FEATURE: page 11
* CEEFAX SUBTITLES

The Rothmans Grand Prix Cliff Thorburn v Steve Newbury
Steve Davis v Jim Wych
Tonight's two matches, to determine the last two for the final 16 places, feature two popular Canadians. Cliff Thorburn will not be underestimating the challenge of Welshman Steve Newbury, who's already seen off Tony Meo to reach this stage of the tournament.
Cliffs fellow Canadian
Jim Wych will surely be entering his match against reigning
World Champion Steve Davis more in hope than expectation.
DAVID VINE introduces highlights of these matches from the Hexagon, Reading.

The last word on world events analysed by Peter Snow Donald MacCormick and Adam Raphael with political and economic reports from Will Hutton and Nick Clarke

Cliff Thorburn v Steve Newbury
Steve Davis v Jim Wych DAVID VINE introduces highlights of the closing stages of these two matches which will determine the two final places in the last 16 of the tournament.