Supermarket Shopping Secrets
BBC TWO
Tuesday 25 July 2017 00:40 - 01:40 (60 mins)
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]
Supermarket Shopping Secrets may be available on playback
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