What is this?
A QR code is a type of barcode which can contain links to webpages. Mobile phones with a camera and an appropriate application are able to read these codes and take you to the address contained within it.
This code will link to the page for The 4 O'Clock Show, 27/12/2012, How Dangerous is your Christmas: 4. Seasonal science when read using a QR code reader.
You may save, print or share the image.