A chemical code.
Shown yesterday at 3.40pm on BBC1
A team of young adventurers set out to help endangered polar bears in the Canadian High Arctic.
The game show that tests friendships.
A camping trip.
Monty mixes up the party invitations.
On a train.
Aunt Mabel and Pippin go snail-spotting.
Why does Archie need to visit an optician?
Get Out. Will Michael and his disorganised family get to the church on time?
Repeats are not indicated.
10.30 See You, See Me (ages 9-11) 5329140 10.50 BBC Primary Geography (ages 7-11)
Archaeologists assess the remains of a chariot found buried with the tallest Iron Age woman ever found.
Westminster updates.
The Transformers. Tadpoles turn into frogs, caterpillars become beautiful butterflies: changing the body to suit the needs of a new lifestyle is one of nature's strangest tricks. Narrated by David Attenborough.
Repeats are not indicated.
1.00 What? Where? When? Why? (ages 6-7) Double bill.
The second round of the Grand Prix gets under way at Preston's Guild Hall. At this stage last year, Ronnie O'Sullivan made light work of Joe Swail , while Ian McCulloch - O'Sullivan's opponent in the final - had a narrow win over crowd favourite Jimmy White. With Ray Stubbs , Steve Davis and John Parrott. INTERACTIVE: digital viewers can view uninterrupted live coveraqe, action from other tables, plus news and statistics
Caustic quiz.
The Grand Prix's second round continues. With
Steve Davis , John Parrott and Hazel Irvine. INTERACTIVE: digital viewers can access uninterrupted live coverage, action from other tables, plus a news and statistics service
4/6. London Calling. it's the end of the Second World War, and two London families tell of their contrasting experiences. Despite heavy bombing in the capital the Mitchell family lived an idyllic life, but just a few miles away the Moores tell a very different story.
Producer Grant Pollard ; Series producer Ian Cundall First shown on BBC1 Greater London Postponed from 27 September
The partnership of Rogers and Hammerstein, the history and culture of the Maya, rock group Queen, and the literary work of Lewis Carroll are the topics in this second-round heat. With John Humphrys. Director Derek Hallworth ; Series producer Pam Cavannagh
www.bbc.co.uk/mastermind
9/9. The Islamic World. From the palaces of Alhambra in Spain to Cairo's souks, Amani Zain explores the golden age of Islamic innovation. Adam Hart-Davis , meanwhile, enthuses over windmills and torpedos. Series producer Ian Potts (Revised repeat)
With Kirsty Wark. (S)
Places in the final 16 are up for grabs as the second-round matches continue. With Hazel Irvine.
Today's highlights.
www.bbc.co.uk/ieamingzone
Schools Repeats are not indicated.
2.00 Geography in Animation
4.00 Geography South Africa 2000
