| Summary: | The landscape of British supermarkets is changing. The big five supermarkets once ruled the high street and their ubiquitous megastores could be found in every British town. But times, shopping trends and customer needs are transforming. Customer loyalty is fading, online shopping is on the up, convenience is king and there's a price war like never before. Supermarkets have had to change their tactics - and fast. Which new trade secrets, technological innovations, and marketing strategies have Britain's supermarkets adopted? And is it enough to stay on top? Gregg Wallace discovers the high-tech acoustic kit being used to get an edge in the battle to bring us a perfect avocado. A look at what's going on in the new battlefield of luxury products on a budget, and Babita Sharma uncovers what we can learn from supermarket data gatherers.
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