Royal Institution Lectures by Professor Eric Laithwaite
2 : Tweedledum and Tweedledee
Lewis Carroll 's twins are symbolic of our concept of left and right. Objects which from certain viewpoints have no left and right introduce the subject of symmetry.
Presented for TV by BRIAN JOHNSON

with DONALD GEE
BOB HOSKINS and CAY HAMILTON
PATRICIA HAYES , POLLY JAMES
ROSEMARY LEACH
NORMAN ROSSINGTON
MARTIN SHAW , NIGEL STOCK
Script BARRY TOOK
Book (same title), £1.00, from bookshops

Comedy series

Weather BARBARA EDWARDS

DONNY MACLEOD , BOB LANGLEY
MARIAN FOSTER and DAVID SEYMOUR present their selection of the activities, music, personalities and talking-points of the day - live from the entrance hall of the BBC Broadcasting Centre in Birmingham: including
Craftsman in Action

With MAGGIE HENDERSON and FRED HARRIS
Executive producer CYNTHIA FELGATE

' He can change his shape like magic'
Created by ANNETTE TISON and'TALUS TAYLOR
Told by MICHAEL FLANDERS

with Michael Bryant
The Sword from the Lake
The legend of King Arthur 4: Mordred

with John Noakes Peter Purves and Lesley Judd
Producer john ADCOCK
Assistant editor ROSEMARY GILL Editor BIDDY BAXTER

English version written and told by Eric Thompson.

with Richard Whitmore Weatherman

News and views in your region tonight. Then the national scene presented by MICHAEL BARRATT
FRANK BOUGH
BOB WELLINGS and DILYS MORGAN
Producers RONALD NEIL
GORDON WATTS. HUGH WILLIAMS
Deputy editor STUART WILKINSON Editor JOHN GAU
(Regional details as Monday)

Introduced by Dave Lee Travis TOP OF THE POPS ORCHESTRA
Musical director JOHNNY PEARSON
PAN'S PEOPLE
Choreography FLICK COLBY Sound KEITH GUNN
Assistant producer STANLEY APPEL Producer ROBIN NASH

A special Christmas edition written by Dick Clement and Ian La Frenais
Starring James Bolam as Terry, Rodney Bewes as Bob, Brigit Forsyth as Thelma

Bob and Terry are determined to enjoy the Christmas festivities to the full but, inevitably, Terry creates a problem or two for Bob which starts the season off on quite the wrong foot.

Introduced by Magnus Magnusson This Semi-final is devoted to the four best runners-up from the initial 12 heats, and it is the last chance for a woman to make it to the Final. But there are three of them lined up against a lone male. So the odds should be in their favour. The contestants and their special subjects are:
MARGARET ASKEW , journalist
The Life and Career of Stonewall Jackson
JACQUELINE PEARSON university lecturer
The Life and Works of Christopher Marlowe
GENA DAVIES , unemployed
Gevimology ALAN BLACKBURN , law student
History of Northern Ireland from 1921
Director PETER MASSEY Producer BILL WRIGHT
Mastermind 2, 50p, from bookshops

with Angela Rippon and Richard Whitmore Weather

A serial in three parts by JOHN GOULD starring
Patrick Mower , Michael Gwynn with Janet Key Part 3
Did Singleton deliberately ' leak ' information about the ' Photic Driver' to the terrorists? If so - why? In 12 hours Frederick should have the answers - providing he can survive the next three minutes ... Outside the terrorists are waiting for him.
Script editor SIMON MASTERS Designer MYLES LANG
Producer MORRIS BARRY Director DAVID ASKEY

Presented by HUMPHREY BURTON Celebrating Jane Austen
Two hundred years ago, on 16 December 1775, JANE AUSTEN was born. She was a clergyman's daughter, lived an outwardly quiet life in the country and in Bath, never married, and died at the age of 41. Her six novels, of which the best known is Pride and Prejudice, are all classics.
Tonight's programme celebrates her birth with Celia Johnson , Edward Fox who read from her work at the Cheltenham Festival of Literature Mary McCarthy, Germaine Greer Arianna Stassinopoulos who talk about their enjoyment of Jane Austen and including film of festivities during the City of Bath Jane Austen Bi-centenary Celebration Week.
Film cameraman JOHN HOOPER Film recordist WALLY PLUMMER Film editor DAVID HOPE
Executive producer MIKE WOOLLER Director CHRISTOPHER BURSTALL Preview: page 17

Introduced by SUE LAWLEY , DENIS TUOHY , DONALD MACCORMICK Reporting on - the events which affect us
- the people who take the decisions - the people affected by them.
Editor MICHAEL BUNCE