TV tonight: The secrets behind M&S party food and picky eaters | television

Inside M&S at Christmas

9pm on ITV1
The product development team at Marks & Spencer are nothing short of a miracle, especially when it comes to party food. This year’s festive treats include fish and chips-inspired canapés and ‘Christmas cracker’ Colin the Caterpillar (think classic Colin, but much sexier). Plus, the best-selling classic panettone gets a new update. Holly Richardson

Dark winds

9pm, U&Alibi
A disturbingly crazy murder opens another episode of this dusty, menacing crime drama. As FBI Special Agent Washington interrogates Leaphorn during a tough chase, Manuelito puts her career—and perhaps her life—once again at risk when she goes it alone. Jack Seale

A Very British Christmas: Bamburgh Castle

8pm on Channel 4
On to Northumberland, where there’s a chance the festive castle decorations will be enhanced with some actual snow. Either way, there should be a lot going on as designer Dave O’Donnell and his team installed seven caves based on Treasure Island, Aladdin’s Cave, and The Golden Goose. Phil Harrison

What is the purpose of the monarchy?

9pm, BBC One
Windsor whisperer David Dimbleby goes on to ask a question that is revealing in itself – because it seems like a question that mainstream Britain has not asked seriously for many years. This concluding episode examines the ways in which royals control (or fail to control) their public image and shows why this is more important than ever. pH

Mozart: Genius for Hire

9pm, Sky Arts
This fascinating documentary explores the composer’s working life as a pioneering freelancer. Mozart’s activity was impressive, as he delighted in rewriting pieces with the audience in mind. “He didn’t see entertainment and art as two different things,” says Anneliese Miskemon, artistic director of the English National Opera. pH

Rob and Romesh vs Hip Hop

9pm Sky Max
Romesh Ranganathan is a hip-hop head, so the stakes seem unusually high when he and Rob Pickett head to New York City to see if they have any rapping aptitude. Raekwon, a Wu-Tang Clan veteran, offers advice on opening up their flow, but can Rom really cut the mustard on a freestyle rap battle on the sidewalk in Union Square? Graeme Virtue