6.30 Sheffield: The Tertiary Debate

6.55 Thermodynamics in Action

(to 7.20)

The Embassy
World Professional Snooker Championship
Eleventh day: Quarter-finals At 10.30 the players the experts forecast to be in the arena are STEVE DAVIS (1) and his stable-mate TERRY GRIFFITHS (8), which would be a repeat of last year's quarter-final.
In the other quarter-final
CLIFF THORBURN (3) is seeded to play EDDIE CHARLTON (6), but DENNIS TAYLOR (11) could well change that draw.
At 2.30* pm during Snooker Break your first chance to enter this year's Shot of the Championship competition to win an all-expenses-paid trip to Sheffield, with tickets for the final next Saturday and Sunday. DAVID VINE explains the rules.
At 3.0 the last two quarter-finals start and seeded to compete are RAY REARDON (5) and KIRK STEVENS (4).
On the adjacent table JIMMY WHITE (7) and TONY KNOWLES (2) are expected to begin the first eight frames of the last quarter-final. Remember, it's still the best of 25 frames. Introduced by DAVID ICKE Technical co-ordinator GEOFF LOMAS. Competition entries to:
Shot of the Championship, BBCtv
Crucible Theatre, Sheffield S14 7UP giving home or daytime phone number

with subtitles followed by Weather

I The second of three musicals starring
Jeanette MacDonald Nelson Eddy Romance and adventure in the Caribbean with a cargo ot songs from the Sigmund Romberg musical about a marriage of convenience which turns out to be a love match.
Screenplay by JACQUES DEVAL and ROBERT ARTHUR based on the operetta by OSCAR HAMMERSTEIN
FRANK MANDEL , LAURENCE SCHWAB Music by SIGMUND ROMBERG
Produced and directed by ROBERT z. LEONARD
• FILMS: page 23

Live coverage and the latest news of the other quarter-finals played this afternoon, plus Shot of the Championship.

IRAS -The Supercooled Eye Astronomy is on a new wavelength: the infra-red. A brilliant satellite achievement by a Dutch-American-British team has revealed yet another face of the universe. The story is told in faint, warm radiation picked up by a telescope cooled almost to absolute zero - it would detect a bicycle at 2,000 miles. This programme tells the story of IRAS - the InfraRed Astronomical Satellite, which with little publicity, has detected evidence for planetary systems around stars - with implications for life elsewhere; new stars being born; veil upon veil of cold dust permeating our galaxy -and 20,000 newly-seen galaxies, some on the very edge of the known universe, with roots in the Big Bang which started it all 15 billion years ago.
Narrator Ian Holm
Film editor DAVID ELLIOTT
Horizon editor GRAHAM MASSEY Written and produced by GLYN JONES

The Embassy
World Professional Snooker Championship
DAVID VINE introduces highlights of this evening's quarter-final matches, which should involve present world champion STEVE DAVIS.

Interesting
Heinrich Schtenker , the little-known but much-hated amateur philosopher famous for his epithet 'I exist therefore I am', was run over by a tram in Vienna in 1893. Good job too. starring Ade Edmondson Rik Mayall
Nigel Planer
Christopher Ryan with Rip, Rig and Panic and KEITH ALLEN ,
TONY ALLEN , MARK ARDEN ,
NICHOLAS BALL ,
PAUL BRADLEY , RUTH BURNETT ,
MARK DEWISON , CHRIS ELLIS , DAWN FRENCH STEPHEN FROST
, SADIE HAMILTON ,
PETER LAXTON , DAVE LLOYD , WILLIAM MACBAIN ,
KILIAN MCKENNA , MICHAEL REDFERN , JENNIFER SAUNDERS ,
CINDY SHELLEY , DAVID SQUIRE Written by BEN ELTON
RIK MAYALL. USE MAYER
Additional material ALEXEI SAYLE Music PETER BREWIS
Designer GRAEME STORY
Producer PAUL JACKSON

The boys decide to throw a party, but before long it descends into chaos. A preachy Christian turns up, Rick gets annoyed when their guests arrive early. Show more

One of the greatest masters of 20th-century painting died last month at the age of 97. This filmed tribute contains the last interview given by Chagall and charts his life and work from the earliest years in Vitebsk, Russia, through two world wars, and a revolution in his homeland, his time in Paris, and la Ruche, to his last home in the south of France. The programme shows Chagall at work in his studio and painting his monumental windows for
Reims Cathedral and follows his account of his life, in his own words and in readings from his autobiography. Producer DOMINIK RIMBAULT An Arena presentation

John Tusa , Peter Snow and Donald MacCormick with Jenni Murray and Ian Smith present the reports and interviews that matter with the analysis that counts. Producers HOWARD ANDERSON DAVE STANFORD , JANE DRABBLE Directors
JOHN WILKINSON , CHRIS FOX Assignment editors
NICK GUTHRIE , TOM ROBERTS Deputy editor JOHN MAHONEY Editor DAVID DICKINSON

Late-night highlights of the second eight-frame session of the quarter-final matches played this evening.
Introduced by DAVID VINE Commentators TED LOWE
JACK KARNEHM
CLIVE EVERTON