Secrets of Supermarket Buyers

Denise discovers some amazing truths behind the scenes at Waitrose, from the in-store bakery to cheese, smoothies and free coffees.

Denise takes us on a middle-aisle meander to reveal rivalry secrets between Aldi and Lidl, from their wine and wagyu beef to special offers and loyalty prizes.

Denise lifts the lid on some amazing truths behind the scenes at M&S, from Dine-In secrets and the power of Percy Pigs, to fashion and flowers.

Denise reveals the secrets of Tesco's meal deals and Clubcard prices.