The pair unpack "Joy to the World," including the cultural reference they couldn't ignore. "It's a piece of our history now," says Moffat.

The TARDIS is as much a part of Christmas as turkey, mince pies, and mulled wine, and former "Doctor Who" showrunner Steven Moffat certainly knows his way around a festive adventure. This year's holiday offering, "Joy to the World", is the writer's ninth, and it comes with all the trimmings you'd expect.

It’s not that Doctor Who’s festive episodes can’t be memorable; “The Husbands of River Song,” “A Christmas Carol,” “The Runaway Bride,” and more beg to differ. But I know it’s a holiday tradition in the U.

Filming that scene in the room that’s from millions of years ago was Coughlan’s favorite, she tells TV Insider. “It had a little bit of everything. You got that emotional moment and then you have the dinosaur and the escape, and I loved all of that,” she shares. “It’s such a fond memory.”

Season 2 of "Squid Game," the latest "Doctor Who" Christmas special, and Nate Bargatze's new stand-up special are available on streaming this week.

Warning! The following contains SPOILERS for the Doctor Who Christmas Special "Joy To The World." Stream it with a Disney+ subscription and read at your own risk! Doctor Who came back, albeit temporarily,