Bbc – The Truth About Killer Dinosaurs (2008)

There could be nothing more sweet and sentimental than the sound of traditional carols performed by a velvet-voiced choir at Christmas. Or so you would think. Composer Howard Goodall uncovers the surprising and often secret history of the Christmas carol.

There could be nothing more sweet and sentimental than the sound of traditional carols performed by a velvet-voiced choir at Christmas. Or so you would think. Composer Howard Goodall uncovers the surprising and often secret history of the Christmas carol.

CGI, special effects and hi-tech scans are used to challenge everything you thought you knew about dinosaurs and their prehistoric world.

By the middle of January many people struggle to keep up their resolutions to be more active. The result is that the UK wastes nearly £600 million a year on unused gym memberships.

As a nation, we love eating carbs, and they are right at the heart of our diet. The problem is that with 63 per cent of UK adults now considered overweight or obese, many experts think that we are eating far too many wrong sorts of carbohydrate. Xand van Tulleken is a medical doctor and self-professed lover of carbs, to the point where he used to weigh 19 stone. He is keen to discover whether they really are a killer as claimed by many, responsible for record levels of obesity and type 2 diabetes.

In the UK over £9 billion a year are spent on beauty products that promise to improve and transform us. But how much of what these products promise is based in scientific evidence, and how much is simply marketing manipulation? Cherry Healey teams up with independent scientists to put everyday cosmetics to the test like never before. In a groundbreaking study carried out by the University of Sheffield, and with the help of 25 volunteers, she discovers that moisturisers might not have the benefits people think they do.

We are one of the most sleep-deprived countries in the world. Insomniac Michael Mosley finds out what happens if we don't get enough sleep and looks at surprising solutions to help us get more.

As the Children's Commissioner releases the results of the most comprehensive study of child sexual abuse ever conducted in the UK, Professor Tanya Byron and Tazeen Ahmad investigate its shocking findings. How much do we really understand about this horrific crime? How common is child sex abuse and how much remains hidden? Who are the offenders and how many paedophiles are there in a typical town? They uncover the devastating reality behind the statistics, meeting the young victims, and the offenders themselves, to lay bare the truth about child sex abuse.

BBC political editor Nick Robinson examines the public's anxieties about immigration and reveals the facts of an issue that has transformed British politics. With Britain braced for a new wave of migrants from eastern Europe, a subject once regarded as toxic is now at the forefront of political discussion. The programme dissects the decisions which led to the biggest surge of immigration in modern history and asks whether politicians can control immigration as much as they claim, looking at the potential consequences of their pledges.

Fiona Phillips explores the latest scientific research into the perception, experience and management of stress.