Curves from Parameters. The shape of a curve can be described with mathematics, as this programme explains.

An animated version of the classic children's story.
Babar's children help their father overcome one of his problems by telling him about the time they thought there was a monster in the palace.

Cheryl Baker has all the ingredients for a scrummy show, with two live bands in the studio, a new video, and today's special recipe. Who will win the Baker's Dozen and become Cheryl's Bakers?
Cheryl also goes out and about in the UK and Europe; where is she today?
Director Mick Dempsey
Producer Madeline Wiltshire
0 LETTERS: write to Cheryl Baker with any ideas at Eggs 'n' Baker,
BBCtv, PO Box 27, Manchester M60 1SJ.

Cartoon adventures in outer space. BraveStarr is the fastest, toughest and bravest marshal in the galaxy. And it's a good thing, because New Texas is the galaxy's roughest, toughest planet. (R)

This morning's special guests include rock musician Roger Daltrey , animal therapist
Peter Neville and pop band EMF! There's cartoon adventure with The Raccoons and the Teenage Mutant Hero Turtles. There's the latest pop videos to watch, plus news and reviews from the music world.
Darren Day presents another edition of the Clockwise quiz. With your calls and letters, competitions and comedy, it's all Going Live! at 9am.
With Sarah Greene and Phillip Schofield , and featuring Trevor and Simon.
Editor Chris Bellinger
* LETTERS: Going Live! BBCtv, Wood Lane, London W 12 7RJ
0BOOK More Letters to Growing Pains, by Phillip Hodson , £2.75 from booksellers, published on 8 February. Going Live's agony uncle discusses the pains of growing up, and answers the letters of 8 to 16-year-olds who tell him of their worries and fears which they feel they cannot share with anyone else. • PICTURE STORY: page 47

With Suzanne Charlton.

Introduced by Bob Wilson. Provisional Timetable
12.20 Football
12.30 Ski-ing
1.00 News; 1.05 Racing
1.25 Snooker; 1.40 Racing
1.55 Snooker; 2.15 Racing
2.30 Snooker; 2.45 Racing
3.00 Rugby league
3.50 Football half-times
4.00 Snooker
4.40 Final Score
Football
A look back to the international matches pairing England v Cameroon, Scotland v USSR and Wales v Eire.
Snooker
From London's Wembley Conference Centre.
First semi-final of the Benson and Hedges Masters, seeking the winner of the best of 11 frames. Will it be a repeat of last year's world championship final, matching
Stephen Hendry against John Parrott ? Commentary by Ted Lowe , Jack Karnehm and Clive Everton.
(Coverage continues at 5.15pm on BBC2)
Rugby League From Castleford.
Round 1 of the Silk Cut
Challenge Cup.
Castleford v Wig an The world's most expensive player, Graham Steadman , stands between Wigan and their quest for a record fourth successive win at Wembley. Live coverage of the second half, with commentary by Ray French and Alex Murphy. 0 PICTURE STORY: page 47
Ski-Ing
From Val-d'Isere.
Men's Downhill
Championship. A dress rehearsal for 1992 over the new Olympic course.
Commentary by David Vine.
Racing
From Newbury.
1.15 Steel Plate and Sections
Young Chasers Qualifier (21hm)
1.45 Save and Prosper Game Spirit Chase (2m 160yds)
2.20 Tote Gold Trophy (Handicap. 2m 160yds).
The most competitive and controversial handicap hurdle of the year, with a prize of more than £30,000.
Martin Pipe 's unbeaten Honest Word has been favourite since the weights were published.
2.50 Byrne Brothers Compton Chase (3m).
Commentary by Julian Wilson , Richard Pitman and Peter Scudamore.
Producer Martin Hopkins Editor John Philips

With Moira Stuart.
Weather Suzanne Charlton

0 NEWS BY TELEPHONE: if you can't reach a television or radio, BBC News can be heard on the telephone between
5.00am and 8.00pm by dialling
0[number removed]. Calls charged at 33p per minute (cheap rate), 44p all other times.

Tony Robinson presents another selection of animated action and cartoon craziness.
Producer Nick Jones

Jimmy Savile makes some more dreams come true for people of all ages. Director Helen Gartell Producer Roger Ordish
• REQUESTS: if you have a request for yourself or as a pleasant surprise for a friend, write to Jimmy Savile at BBCtv Centre, Wood Lane, London W12 7RJ. FEATURE: page 31 • CEEFAX SUBTITLES

A comedy series set in Nazi-occupied France.
Written by Jeremy Lloyd and Paul Adam.
The German officers burgle
Gestapo headquarters, but find a ghostly apparition has got there before them.
Director Sue Longstaff
Producer Mike Stephens
* BOOK: 'Allo 'Allo! 2: More War Diaries of Rene Artois , £5.99, from booksellers. * CEEFAX SUBTITLES

Tonight Paul Daniels puts on his 'thinking cap' when he invites viewers to join him in his world of mystery and magic. His special guest is
Uno Lanka, who demonstrates his amazing music and balancing skills. Featuring Debbie McGee.
Director/Producer Geoff Miles * CEEFAX SUBTITLES

Starring
John Nettles
On the Rocks. Business is not too good for Bergerac, so when Charlie is invited to
France to attend the 80th birthday party of an old friend, he accepts the job of chauffeur. When a necklace goes missing, and unwelcome family secrets are uncovered, the party turns out to be more eventful than he imagined.
Episode written by Christopher Russell Producer George Gallaccio Director Michael Rolfe 0CEEFAX SUBTITLES

A comedy series about two doctors, father and son, written by George Layton. Starring
Tony Britton Nigel Havers
Toby has spent weeks writing a special article for a medical journal and then, just as he finishes it, it goes missing!
Director/Producer Harold Snoad (R) 0 CEEFAX SUBTITLES

Michael Buerk presents the day's latest news stories with reports from a team of BBC correspondents in Britain and around the world.
Weather Suzanne Charlton
* CEEFAX SUBTITLES (news only)

Starring
Gary Cole
Protection. The security of the witness protection programme fails to work for a couple who informed on a Central
American drug cartel. When they are tracked down by professional killers, Killian has to help them - having promised their safety.
0 CEEFAX SUBTITLES

Ruby Wax meets John Manca who has connections with the Mafia, she hears about life in Los Angeles from
Tracey Ullman and is caught snooping around Joanna Lumley 's house. With Louie Anderson. Director Juliet May
Producer Janet Street-Porter * COMEDY: page 10

The Masters tournament reaches its closing stages, with Tony Gubba watching the play unfold at Wembley
Conference Centre on the road to tomorrow's final.

Starring John Wayne, Richard Boone, Maureen O'Hara

Following a vicious raid on the McCandles' ranch, the young grandson of the family is kidnapped and held to ransom for $1 million. It's time for the head of the family, Big Jake, to swing into action. 'The Duke' is ideally cast in this tough turn-of-the-century western, which mixes comedy and adventure on its way to a rousing climax.
Director George Sherman
Films: pages 37-44