Figures are sourced from audience measurement body Rajar.
(D) Digital-only stations
(Q) Based on quarterly survey period
(H) Based on six-monthly survey period
A newspaper warning of the 'Monogram Murders' is being handed out to Londoners, with the publication resembling a 1920s paper and even including ads from the era from the likes of Unilever, John Lewis and Fortnum & Mason. The murders, of course, are fictitious but are being used to promote and are the subject of HarperCollins' new Hercule Poirot mystery.