Ends 9.00.

UBOS
Cassy is acting very strangely.

7 20 Blue Peter
With Linford Christie.
(Shown last Friday, BBC1)

7.45 X-periMENTAL
How many kids does it take to lift a car? Ortis and Holly Willoughby find out.
(Shown Wednesday, BBC1)

8.00 Round the Twist
The Twist family move into their new home - a lighthouse.

8.25 Flint the Time Detective
The evil Petra travels to 1881 in an attempt to gain the ability to fly.

8.50 Sheeep
Gogol's car gets two flat tyres.

Ends 10.50.

Clifford the Big Red Dog
Frankie the little dog learns that being small can be a good thing.

9.15 Bob the Builder
Mr Beasley helps Bob find a new home for some bats.

Followed by CBeebies Birthdays

9.30 Binka
Binka helps Mrs Dawson make a cake. Then he's kept awake by night-time noises.

9.40 Fimbles
Fimbo, Florrie and Pom follow a trail of blue footprints.
Shown last Friday

10.00 Tweenies
The friends refuse to play together. [web address removed]
BBC TWEENIES MAGAZINE: published monthly £1.40. New issue on sale now.

10.25 Teletubbies
Laa-Laa plays with her ball. [web address removed]

(Repeats are not indicated.)

10.50 English Express (ages 9-11) Texts ? Imaginary Beasts

11.10 Primary History (ages 9-11) Britain Since 1948 - Trouble and Strife

11.30 The Experimenter (ages 7-9) Forces - XP Ahoy

11.50 See You, See Me (ages 7-9) Are You Eco-friendly? - the Forest

12.10 Around Scotland (ages 10-12) Children of Coal and Iron - Intolerance and Religion

The first of the week's finance and business news round-ups. With Adam Shaw.

(Repeats are not indicated.)

1.00 Magic Key (ages 5-6) Dragon Land

1.15 Numbertime: Time - Comparison of Time

Live coverage from Wembley Conference Centre of the Masters clash between world number one Ronnie O'Sullivan and Masters newcomer Joe Perry. Meanwhile, will veteran Steve Davis - who completed a Masters hat-trick in 1997 - manage to capitalise on his wildcard entry into this year's competition in his opening match against Northern Ireland's Joe Swail?
Presented by Ray Stubbs and John Parrott, with Clive Everton, Dennis Taylor, John Virgo and Willie Thorne in the commentary box.

Including, at 3.20, News; Regional News (Digital: BBC London News); Weather

Elimination quiz, presented by Anne Robinson.

Bart the Murderer. Mixing with mobsters could mean curtains for Bart. With the guest voice of Joe Mantegna.

Will's role-model rating plummets when he takes Nicky to visit a children's hero.
Another episode is on Thursday at 6.20 pm

Tonight's second-round, best-of-11-frames match at the Masters sees Stephen Lee take on Australian Quinten Haan for a place in the quarter-finals. Lee will be hoping to improve on last year's performance, which saw him knocked out at this stage by eventual champion Paul Hunter. Presented by Ray Stubbs , Steve Davis and John Parrott from Wembley Conference Centre.

Leeds take on Nottingham in a nail-biting second-round match. Jeremy Paxman asks the questions.
Director Tracey Rooney ; Producer Peter Gwyn

Jason Barlow and Dominic Littlewood screech into Sutton Coldfield, west Midlands, to help 80-year-old Nancy Sanders, who is working on a budget of just £7,000, swap her Vauxhall Astra for an automatic hatchback with enough room in which to take her friends out for lunch.
(Postponed from 28 January)

Ends 10.30.
Never Mind the Buzzcocks
Rochdale diva Lisa Stansfield, comedian Jimmy Carr, Moloko's Roisin Murphy and TV presenter Claudia Winkleman join team captains Phill Jupitus and Bill Bailey for another comic test of musical knowledge, hosted by Mark Lamarr.
Director Paul Wheeler; Producers Simon Bullivant and Warren Prentice
(Repeated next Sunday)

9.30 Shooting Stars
Artist and raconteur Clement Freud, ex-Hearsay member Myleene Klass and actress Claire Goose are the guest panellists joining hosts Vic Reeves and Bob Mortimer, team captains Ulrika Jonsson and Will Self, and regular Johnny Vegas for more frantic quiz antics.
Director Richard Valentine: Producer Lisa Clark
(First shown on BBC Choice)

10.00 The Kumars at No 42
Supermodel Jodie Kidd and Jimi Mistry, star of Hollywood hit The Guru, join interviewer Sanjeev and the rest of the Kumar clan in their charming Wembley home.
Written by Richard Pinto, Sharat Sardana. Sanjeev; Producers Lissa Evans, Richard Pinto. Sharat Sardana; Executive producers Jimmy Mulville, Denise O'Donoghue

Sanjeev welcomes supermodel Jodie Kidd and Jimi Mistry.

Analysis of the news, with Gavin Esler.

Steve Davis and John Parrott introduce highlights of the day's play at the Masters.

(Repeats are not indicated)

Open University
12.30 Musee du Louvre - Understanding a National Institution

1.20 Ever Wondered?

1.30 The Encyclopedie

Secondary Schools
2.00 Geography World Physical Languages

4.00 Spain Inside Out (parts 5-6) Working in the Arts

5.00 Film

Open University
6.00 Mosaico Hispanico

6.30 The Glastonbury Tales