Ends 10.50.

The Prince of Atlantis
Orkov and Akata have to contend with a ship carrying a lethal cargo. (R) (S)

7.25 Dennis the Menace
Animated hell-raising fun. (R) (S)

7.50 Blue Peter
Top skiers join the team for fun in the snow. including snowboarding. With sign language. Shown yesterday at 5pm on BBC1 (S) (W)

8.15 Doctor Otter
The results are explosive when Dunston adds a twist to Raylee's blackberry squash. Repeated at 1pm (R) (S)

8.25 Oakie Doke
Animation with the arboreal Mr Fixit. (R) (S)

8 35 64 Zoo Lane
Animal animation. Georgina the giraffe tells Lucy all about herself. (R) (S)

8.45 Penny Crayon
The Spotty twins try sabotaging Penny's brainchild - a charity treasure hunt. (R) (S)

9.00 Teletubbies
In a double bill, the aerial-sporting quartet get together to make a noise, and then leave their things behind. (R) (S)
BBC VIDEO: Teletubbies 2 video box set, containing Musical Playtime and Nursery Rhymes, price £12.99

9.50 Playdays
Peggy Patch sets a nature trail for her friends in the Outer Hebrides. (R) (S)

10.10 Tweenies
A double bill in which Max's surprise goes somewhat awry and the Tweenies get stuck together. (R) (S) (W)
BBC CD: Tweenies Christmas Album, featuring Hey Hey, Are You Ready to Play?, is available from retailers

Repeats are not indicated.
10 50 Megamaths (ages 7-9)
Measure - the King's New Clothes 3183678 11.10 Look and Read (ages 7-9) Spelling Strategies
(part 2) 2676949 11.30 Science Zone (ages 9-11) Living-Paradise Lost 6012843 11.50 Landmarks (ages 9-12) Portrait of Europe -Alpine France
12.10 Focus (ages 9-13) Growing Up-How Am I Behaving?

Business updates.

Shown at 8.15am.

Live coverage from Hopton-on-Sea in Norfolk of the first day of the quarter-finals.
Paul Foster 's 3-0 win over Robert Weale at this stage last year belied the closeness of the match, with the sets going to 7-5, 7-6, 7-6. Mary Rhodes presents, with reports from
Chris Hollins.

Analysis of today's political proceedings at Westminster, presented by Zeinab Badawi.

(Contact details Wednesday)

Regional News (Digital:
UK Today) Weather

Continuing quarter-final coverage from Potters Leisure Resort. Commentary from
David Rhys Jones.

More contestants are challenged to create 20-minute meals by Ainsley Harriott.

More acerbic put-downs from Anne Robinson as she hosts the elimination quiz.
(Repeated at 12.30am on BBC Choice)

And the Answer Is .. ? Lois and Clark's parents are in trouble when Clark is subjected to blackmail.

Forever. While Buffy arranges the funeral, Dawn tells Tara and Willow that she needs their help to raise the dead.
(Repeated tomorrow 1.10am)
Website: [web address removed]

7.30 (Greater London) First Sight: To Bring Smile
Tracing artist David Odwar's nostalgic journey back to Uganda, the country whose horrors he fled as a child, in a search for his lost brother.

7.30 (South East) Southern Eye: Champagne Tastes, Lemonade Money
Bournemouth and Poole are becoming a magnet for the newly rich. Freddie Rostand finds out the millionaires' motivation for moving south.

(Regional Programmes: see panel on left for variations. Viewers on digital will see First Sight)

Namibia. Rain seldom falls on Namibia's Skeleton Coast, where the temperature regularly exceeds 50°C/122°F. It has been the scene of countless shipwrecks, one of which left 80 British passengers stranded and relying on airdrops. Ray Mears visits this unforgiving desert wasteland to track down one of its few residents, the highly endangered black rhino, and, with the assistance of local bushmen, shows how survival can be achieved against the odds.
Director Andrew Graham-Brown ; Series producer Dick Colthurst

Second in the series following families with genetic diseases.

Joanne and John Allen's daughter Bethany has inherited an incurable wasting condition that will stop her from ever seeing her twenties. In this film, part of Gene Stories, the two parents, both carriers of the rare Sanfilippo Syndrome, decide whether to try for another child.
Website: [web address removed]; Ceefax: page Free Booklet: ring the Actionline on [number removed]

Presented by Kirsty Wark.

Coverage from Lausanne, Switzerland, of the men's free skate, the event that will determine this year's European champion. Presented by Sue Barker. Commentary from
Barry Davies and Robin Cousins.

Presented by Andrew Neil.

Repeats are not indicated.
Open Science 12.30 Hollywood Science Cool Hand Luke - behind a memorable movie moment. 9132447 12.40 Final Frontier 2793586 1.10 After the Genome
2.00 The Birth of Liquid Crystals 56302 2.30 Uncertain Principles 75437 3.00 A Thread of Quicksilver
Curriculum Development 3.30 Explicit Learning Plus: Look at It Another Way - strategies for classroom teaching. Languages 4.00 Spanish Journey (part 2)
Working In Health and Care 5.00 The Future
Open University 6.00 Wallace in Wales 99895 6.30 Was
Anybody There? - how mediums tricked Victorian society.