Dr Tenma builds a rival robot named Atlas.
Find out how Chloe got on in her audition for an upcoming new film. With Sam Nixon, Mark Rhodes and Ayesha Asantewaa.
Also on the CBBC channel
[web address removed]
Digital viewers can find out how to join in with the show via the red button
Grandpa is ill, then Pingu donates some money.
Jim, Ripple and Eco all lose their memory.
The cub meets feathered friends.
Repeats are not indicated
(ages 7-9) Double bill.
The Mystery of the Jurassic
Investigating the significance of an incredible dinosaur graveyard found on a plateau in Patagonia, Argentina. Another investigation tomorrow 10.40am
Westminster news with Andrew Neil and Jenny Scott.
Adam Shaw investigates the advantages and drawbacks of retiring to South Africa.
Repeats are not indicated
1.00 KS2 Science Clips
(ages 7-9) Triple bill.
The eight remaining players line-up on day 11 at the Crucible for the start of the guarterfinals. A controversy-filled clash last year saw reigning champion Ronnie O'Sullivan crash out 13-11 to Peter Ebdon. Ray Stubbs , Steve Davis and John Parrott analyse action from the best-of-25-frames matches. Commentary is from Clive Everton, Neal Foulds , Terry Griffiths , Dennis Taylor , Willie Thorne and John Virgo.
Also live at www.bbc.co.uk/sport (UK only) r Digital viewers - live uninterrupted coverage of both tables, plus a news and results service, via the red button
Broadcast By the Liberal
A fresh batch of brainy upstarts challenge the team of general knowledge goliaths that features the likes of Judith Keppel , Chris Hughes and Kevin Ashman. Presented by Dermot Murnaghan.
Galton Blackiston and Antony Worrall Thompson - representing Midlands and the East - move on to the fish course. While Galton ventures to the bottom of his drive to meet a supplier who'll provide the principal ingredient for his offering of lobster lasagne with gruyere cream sauce, Antony goes further afield to source wild salmon for a dish in which it is accompanied by his spiced shellfish butter. Series producer Bernice Daly ; Exec producer Nicola Moody RT DIRECT: for a whole host of cookware offers and ideas, visit www.blueshoots.com/rtdirect
Continuing live coverage from the quarter-finals at the Crucible Theatre in Sheffield, where two of the matches are entering their second session. The difference between winning and losing at this stage is £20,000. Does anyone yet have one foot in the last four? Matthew Stevens of Wales was the sole non-Englishman to make it past this point in 2005, defeating Stephen Hendry 13-11 to reach his fifth semi in six seasons. Hazel Irvine introduces. All coverage is also live online at www.bbc.co.uk/sport (UK only)
Digital viewers can access live uninterrupted coverage of both tables, plus a news and results service, via the red button
2/3. Cirencester to Carlisle. Dan Cruickshank makes his way from Wales through the Midlands to Lancashire and the Lake District as he retraces Claude Friese-Greene's epic car journey from the tip of Cornwall to John o' Groats. On the way, he finds descendants of people featured in footage shot by the pioneering film-maker. One of them is Grace, now in her late 80s, who was orphaned soon after the film was made. She talks about what happened to her family. Producer Annabel Hobley ; Series producer Emma Hindley All the Friese-Greene footage can be viewed at [web address removed] RT DIRECT: Lost World of Friese-Greene DVD available to pre-order (released 3 May) for just Â£14.99 (RRP Â£19.99). Send a cheque, payable to BBC Shop (quoting [number removed]), to [address removed]call [number removed] quoting [number removed] (landline calls cost max 8p per min); visit [Web Address Removed] . Add Â£2.45 postage per order
Driven to distraction: page 59
3/8. The [text removed] Family. Kathy is a young mum with two kids, a new man in her life - and a big problem. Seven-year-old Jay constantly clashes with younger brother Owen, but what starts as play-fighting turns nasty. In the current situation, Kathy feels powerless to make the boys listen to her. Enter Dr Tanya Byron with a new perspective on Jay's aggression. Can she help Kathy to assert her authority?
Producer Miranda Michaelis ; Series producer Sacha Baveystock
First shown on BBC3
With Jeremy Paxman.
A look back at the green-baize highlights from
Sheffield's Crucible Theatre on a day of quarter-final action. Introduced by Hazel Irvine.
Which of the quarter-finalists have emerged as favourites to reach the last four? Presented by Ray Stubbs.
[web address removed]
(Repeats are not indicated.)
2.00 GCSE Bitesize Revision Design and Technology 1
Effective design and creation, including a look at graphic products and food technology.
4.00 GCSE Bitesize Revision Design and Technology 2. Resistant materials, plus systems control and electronics.