"Kate and Wills obviously wanted both sets of grandparents around for George's first Christmas," a source told Look magazine.
"They're so incredibly excited. Not only is it their first Christmas as parents, but it's also the first time they'll all be together.
"Last year, they spent this time at Kate's family home in Buckleberry and Harry was working out in Afghanistan. This year, it looks like they'll all be around."
While we can imagine Xmas with the Queen isn't the most, er, thrilling of times it's rumoured K-Middy and her fam want to shake things up a bit!"Christmas in previous years has been formal and duty-filled. Timetables and instructions were even handed out to guests," the insider added.
"But Wills' Christmas with the Middletons last year made him realise how much more enjoyable the festive period could be and he's been campaigning with Kate to bring that informal flavour to the royal fold.
"He's bought a job lot of board games – the sillier the better. The idea is to play games like Pictionary and charades, which will bring people out of themselves. Anything to break the ice really. Harry's even suggested bringing a Wii console!"
We can picture the scene now, William and Charles fighting over the control when the winner stays on rule descends into chaos during Wii Tennis.