Gregg Wallace and Babita Sharma lift the lid on the science behind the supermarkets. Gregg finds out how supermarkets decide where to open convenience stores. Show more

Gregg Wallace reveals how supermarkets get the public in the mood for autumn. Including a look at Halloween pumpkins, own-label pies and the hidden world of online supermarkets. Show more

Gregg Wallace reveals how the supermarkets gear up for the biggest challenge of their year - Christmas. He sees what it takes to deliver millions of turkeys. Show more

Gregg Wallace and Babita Sharma lift the lid on the science behind the supermarkets. Gregg discovers the high-tech acoustic kit being used in the battle for the perfect avocado. Show more

Gregg Wallace and Babita Sharma lift the lid on the science behind the supermarkets. Gregg discovers the exotic ingredient being used to produce a healthier burger. Show more

Gregg Wallace goes behind the scenes with Britain's biggest food retailers. He reveals how the supermarkets bring us our summer favourites, and how they stay ahead of the weather. Show more

With spring in the air, presenter Gregg Wallace finds out what it takes to bring us millions of eggs for Pancake Day, and discovers the clever technology behind Easter chocolate. Show more

The supermarkets know that shoppers don’t show much allegiance to them any more, so what techniques are they coming up with to keep us coming back? Show more

Gregg sees how robots are revolutionising online delivery, while Nikki tests out new pay-in-the-aisle technology as we move towards a checkout-free future. Show more

Gregg Wallace and Nikki Fox look at how technology is transforming the way we shop for food. This time, Gregg looks at new vegan meals designed to taste like meat. Show more