The countdown to the Grand National begins with Clare Balding at Aintree.
4/26 Todd disguises himself as his Auntie Dot when she cannot make it to the Big Zing.
5/52 Pinky and Perky are tricked into creating a gigantic gunge monster which causes chaos. (R)
1/6 The teams meet for the first time, and discover the task ahead of them. (R)
3/13 Action hero Sock swings into more trouble as he tries to cross Snake-Belt Pit. (R)
9/160 Dermot Murnaghan hosts the quiz featuring the country's top quiz champions.
4/230 Rob struggles to work out the cause of a car accident, while Ruth confronts Smithy.
2/12 Francesco da Mosto visits the city of Split, where the palace is home to squatters. (R)
1/6 Rebekah Prince from Essex longs for an opulent French bedroom.
4/6 A pioneering project finds a new species at the bottom of the sea off the coast of Sweden.
Hazel Irvine presents live coverage of the Masters, the first golf major of 2010.
Coverage of the Masters from Augusta. Presented by Hazel Irvine.
5/7 The film-makers face two shocks in their bid to win a job with the Natural History Unit. (R)
Friday 9 April 2010