This week, Supershoppers investigates brands including Thomas Cook, Tui, Heinz and Sainsbury's. The team goes undercover at the nation's cosmetic counters to test the claims of staff working for beauty companies and exposes the truth about inflight magazine deals from companies including Thomas Cook and Tui. The team also investigates front-of-pack claims from some of the UK's biggest brands in the baby food market and reveals the truth about your TV.