Richard Osman has become the first debut novelist to to top the book charts at Christmas.

The Pointless presenter, 50, released crime novel The Thursday Murder Club - about a group of OAPs solving murders in their retirement village - in September and it has since shifted almost 700,000 copies.

In the week up to Saturday, it sold 134,514 copies alone - easily the winner of the race for Christmas number one and the biggest Christmas seller since Jamie Oliver's 30-Minute Meals 10 years ago.

Barack Obama's memoir A Promised Land was a distant second with 66,531 copies sold, while David Walliams - winner of three of the last four Christmas battles - had to settle for third with Code Name Bananas, which managed to shift 55,129.

Osman has already penned a follow-up book for release in 2021, while Steven Spielberg has acquired the film rights to the series.