'Rotten Ralph - The Contest'
(BBC 1, 4.25 to 4.35pm)
Another animated adventure with the fickle feline. In this episode Ralph enters a competition.
20 April
'Ramblings - Holyrood Park, Edinburgh'
(BBC Radio 4, 3 to 3.30pm)
Scottish writer Roger Smith takes Clare Balding on a walk through Holyrood Park in the centre of Edinburgh, which is dominated by an extinct volcano. They climb to the top of Arthur's Seat and walk around the lochs of Dunsapie and Duddingston.
22 April
'Go 4 It!'
(BBC Radio 4, 7.15 to 7.45pm)
Matt Smith presents the second edition of this new programme for children. Matthew Sweeney and friends review poems from Faber's children's new poetry collection, while children's writer Philip Pullman reads the second episode of his spooky book, Clockwork, and Matt travels to York to meet some young Vikings.
23 April
'Making Tracks with Simon and Matt'
(BBC Radio 3, 3.40 to 4pm, each weekday afternoon)
'Blue Peter' presenters Simon Thomas and Matt Baker return with their music series for younger children. In this programme they play a song inspired by a man who shot an apple from his son's head, a folk tune from Egypt and music from the Disney cartoon 'Aladdin'. Other programmes feature music by Prokofiev, a song written in 1958, the year 'Blue Peter' was first broadcast, and rhythms from Brazil, Germany and South Africa.
'Blue Peter'
(BBC 1, 5 to 5.35pm)
The ever-popular children's programme celebrates St George's Day in style when the team is joined in the studio by the Royal Regiment of Fusiliers to perform their famous ultra-violet drumstick display. Konnie Huq also reports on the national census and how it affects children.
25 April
'In a Green Shade'
(BBC Radio 3, 7.30 to 11pm)
As concern for the countryside and its place in national life grows more urgent by the day, Patrick Wright presents an evening of features, debate and commissioned new writing on the changing face of rural Britain and the role of the country in culture, society and politics. Themes include the cultural history of the country/city divide; the role of writers and artists in shaping and reflecting our changing notions of a natural world; the persistence of pastoral utopian thinking; and the changing values of farming.
'Your Money or Your Life'
(BBC 2, 8 to 8.30pm)
Financial expert Alvin Hall tells the parents of two-year-old triplets how to balance their budget after they have spent two years yo-yoing in and out of debt only to be kept afloat by the generosity of their parents.