Dec 19th-25th

King of Christmas Lights 
(might not seem like much of a watch but Cutting Edge always does insightful work, and there is something of a phenomenon about how Christmas lighting displays ebb and flow over the years, treading the narrow line between dazzle and tack.
Channel 4 9:00pm-10:00pm (1 hour ) Mon 19 DecCutting Edge delves into the world of extreme festive decorations, meeting people whose homes boast some of the most eye-catching and impressive Christmas-light displays in the UK. Paul Toole spends more than £5,000 on his hobby annually, and this year wants to go bigger - by decorating all the houses on his street. Northamptonshire computer whizz Karl Beetson is trying to use animatronics to create a spectacular display, while Bristol brothers and next-door neighbours Paul and Lee Brailsford face competition from a rival planning to upstage them

The Gruffalo's Child 
BBC1 London 6:30pm-7:00pm (30 minutes) Christmas DayAnimated adaptation of the sequel to Julia Donaldson's best-selling children's book, reuniting all the voice cast from the original. The Gruffalo has raised his daughter on tales of the big, bad mouse, the only creature in the forest he is frightened of. Despite her father's warnings, she sets off in search of this scary creature, along the way encountering the snake, owl and the fox. But when she still has no luck finding the evil rodent, she begins to think he does not exist after all. Robbie Coltrane, James Corden and Rob Brydon lend their voices, with Shirley Henderson as Gruffalo Jr