As The Traitors prepares to launch in the US, the producer behind the series discusses why it was a hit in the UK. Also in the programme, what the Christmas period revealed about advertising – from how companies are spending their ad budgets – to the ads which are working the best. Guests: Stephen Lambert, CEO, Studio Lambert, Sophie Lewis, Chief Strategy Officer, M&C Saatchi, Dino Myers-Lamptey, Founder, The Barber Shop, Benjamin Cohen, CEO, PinkNews, and Chris Curtis, Editor in chief, Broadcast magazinePresenter: Ros Atkins