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
Discover 11,128,835 listings and 280,259 playable programmes from the BBC
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