The Food Programme (BBC Radio 4, 12.30 to 1pm)
While children crave sweets, the delights of bitterness are a truly adult taste, encompassing dark chocolate and espresso coffee. Sheila Dillon explores the taste of bitterness.
30 June
Think About It - The Programme with No Name (BBC Radio 4, 11 to 11.30am)
Ian Peacock explores how different people think and finds out whether a person can be taught a new thinking style.
Blue Peter (BBC 2, 5 to 5.25pm)
Presenters Konnie Huq, Matt Baker and Liz Barker launch a competition to celebrate Blue Peter's 45th birthday later this year, which will give one viewer the chance to be the programme's presenter for a day, joining the team in the studio to co-present a live edition of the programme.
Human Senses - Smell (BBC 1, 8.30 to 9pm)
In a new series, zoologist Nigel Marven goes in search of the biological roots of our senses to discover why particular sights, sounds, smells and tastes have such a powerful effect on us. In this first programme he attempts to discover why human beings like the scent of some things and find that of others absolutely disgusting.
1 July
The Trouble with Sleep - Night Fright (BBC 1, 9 to 10pm)
Up to half of Britain's families have problems with their children's sleep at one time or another. This documentary follows families whose lives are severely disrupted by their children, including six-year-old Holly, who wakes up screaming with night terrors, and four-year-old Eden, who won't stay in her own bed. Both are sent to a child psychologist and sleep specialist who offers simple and effective solutions to the parents to cure the disorder.
3 July
Material World (BBC Radio 4, 4.30 to 5pm)
Quentin Cooper discovers how the brain makes sense of different music - be it a concerto by Bach or a song by the Beatles - and why some people like particular music but others do not.
My Son the Killer (BBC 1, 9 to 10pm)
Many children endure bad childhoods without turning into killers, but it is now recognised that emotional abuse can be a prime cause of violent and criminal behaviour. This documentary follows Roger Aston as he tries to discover the part that he may have played in turning his son Andrew into the man who now has the longest prison sentence in British history - 26 life terms - for a series of horrific attacks he perpetrated on frail, elderly people, two of whom died from their injuries.
