Ends 9.00.

Playdays
The team tell Wayne Jackman's story Things Are Not What They Seem. (R) (S)

7.20 Pocket Dragon Adventures
Dragon-hunting knights ride into town. (R) (S)

7.35 Snorks
Antics with the aquatic music-makers. (R) (S)

8.00 Short Change
Investigations of more viewers' consumer stories.
With sign language. Shown yesterday at 5pm on BBC1 (S) (W)

8.25 Moomin
Has Mama met a missing vampire? (R) (S)

8.50 64 Zoo Lane
Dons the Duck and pals play "let's pretend". (S)

(Repeats are not indicated)

9.00 Storytime (ages 4-5)
Jasper's Beanstalk - Beverley Hills visits an allotment and tells a new version of Jack and the Beanstalk.
(S)

9.15 Words and Pictures Plus (ages 6-7) Long Vowel Spelling
Katie Morag Delivers the Mail - Main Hedderwick's story is read by Paul Ewing. (S)

9.30 Magic Key (ages 5-6) Tumbleweed Desert
Can Biff , Anneena and Floppy make Mickey the weatherman start smiling again? (S)

9.45 Dynamo (early years) Literacy: Letters B and C
Fun and learning with Dynamo and Slomo. (S)

Teletubbies
Bumping bottoms and ball games keep the Tubbies busy. (R) (S)
BBC CD-ROM: Play with the Teletubbies, for PC and Playstation, price £19.99

10.30 Tweenies
Fizz and Milo seek a starfish while Jake and Bella make a rock pool. (R) (S) (W)
BBC CD-ROM: Ready to Play, for PC and Playstation, price £19.99

10.50 Come Outside (ages 4-5)
Crisps - how are crisps made? (S) 3460640 11.05 Pathways of Belief: Islam (ages 7-9) Living as a Muslim: Ramadan and Prayer - east London children discuss their faith. (S) 3516447 11.20 Landmarks Shorts (ages
9-11) North Sea Five geography case studies. (S) 8670089 11.30 Megamaths (ages 7-9) Division: Divide by Two- what are the links between multiplication and division? (S) 2493485 11.50 Music Makers (ages 7-9)
Composition: Finding Sounds - making music from natural noise. (S) 8931195 12.10 Landmarks
(ages 10-12) World Environmental Changes: Forests - how humans influence environments in which they live. (S)

Consumer news, with Adrian Chiles and Adam Shaw.

The second round of the world championship gets underway at the Crucible theatre in Sheffield. The best-of-25-frames matches are played overthree sessions. Hosted by Dougie Donnelly and Matt Smith , with commentary from Clive Everton , Ray Edmonds , Dennis Taylor , John Virgo ,
Willie Thorne and Steve Davis. (S) (W)
Including at
3.20 News; Regional News
(Digital: UK Today); Weather (S) (W)

Bart's Girlfriend. Meryt Streep guests as the voice of the Rev Lovejoy 's daughter and Bart's love interest. (R) (S)
6.20 Lisa on Ice. After failing gym at school, Lisa becomes the unlikely star of Apu's hockey team. (R) (S)

Comedy series from the US about a middle-class family of four squabbling brothers and their long-suffering parents.
Obnoxious new kid Kevin provokes Malcolm into beating him up and Francis gets hot and bothered about sex education at the military school. Meanwhile, Hal's wood-chipper proves fascinating to his sons.
(Repeated next Saturday) (S) (W)

The first of the tournament's quarter-finalists will be decided tonight. Matt Smith introduces more world championship action from Sheffield's Crucible theatre, with commentary from Clive Everton, Ray Edmonds, Dennis Taylor, John Virgo, Willie Thorne and Steve Davis.
(S) (W)

A 17th-century aristocratic plan that went awry and the secret of the Roman occupation await Aubrey Manning when he visits the Fens in East Anglia. In pursuit of the last remaining piece of undrained fen, the retired professor uncovers a lost way of life from the middle ages plus hidden prehistoric hills. Is this flat, drained farmland really completely man-made?
Director John Triffitt ; Executive producer Richard Reisz (S) (W)

National Compost Week sees Alan Titchmarsh and the team digging deep in the Hampshire garden. Meanwhile, the Bournville site is beginning to take shape as Rachel de Thame rescues an old apple tree and plants up the woodland garden, and Joe Swift adds the finishing touches to his multi-functional sleeper steps.
Series producer Colette Foster ; Executive producer Tony Laryea (S) (W) WEBSITE: www.bbc.co.uk/gardening
BBC BOOK: Gardeners' World Complete Book of Gardening, price £12.99 Healing herbs - Gardening: page 14; Solar products: page 24

More second-round action from Sheffield. Presented by Dougie Donnelly.
(S) (W)

Analysis of today's news with Kirsty Wark.
(S) (W)

Tom Paulin , Allison Pearson and Craig Brown join Mark Lawson to discuss the week's cultural highlights.
Producer Mark Bell (S) (W) WEBSITE: www.bbc.co.uk/arts

Thriller about troubled LA cop John Berlin, whose discovery of a dismembered hand puts him back on the trail of a serial killer he believes has killed seven times. As his investigation proceeds, Berlin encounters the blind Helena, who is potentially the killer's eighth victim.
Ends 2.35. Review page 63.
(1992, 15) (S)

Repeats are not indicated.
AS Guru 3.00 English (programme 2) Ends 5.00am. (S)