Steph McGovern, 39, has announced she will be making a return to the BBC with an unusual documentary exploring the science behind hi-vis clothes.The Packed Lunch host is currently enjoying a summer break from her hosting duties, but will return to the airwaves to explore why people “blindly obey” those wearing hi-vis clothing.On Instagram, she typed: “On the radio....I did a documentary for the BBC.....it’s a random one.....about hi-vis clothes! “When I was a BBC business correspondent I spent loads of my time in hi-vis at companies all over the UK. “So this doco is all about the history, use etc but also why we all blindly obey people wearing hi-vis!
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