2/3. 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. [S,AD,SL]
3/3. Convenience: 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. [AD,S,SL]
2/3. Health: 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. [AD,S,SL]