PepsiCo brand Walkers will be back on TV next week with what it claims is its biggest push to date.

Designed to promote the brand’s recent switch to British-sourced flavourings for its core crisp range, the campaign follows brand ambassador Gary Lineker as he travels Britain for home-grown ingredients.

The ad will be backed with a social media campaign showing Lineker’s travels, during which the star enlists the help of his dad Barry.