Episode 4

In the final episode, Grainne Seoige looks into the price we pay to heat our homes, Ade Edmondson gets inside a supermarket to see how they get our Christmas dinner onto the shelves, Angela Rippon tries to bring back the human touch to cinema booking phone lines and Stanley Johnson tries to persuade the public to become stand-in Santas with a hidden camera sting. We also try to find the most confusing road signs in Britain and celebrate another hidden hero doing a job that keeps the country ticking.