Spoilers ahead as we unpack the concepts and ending of this year’s Doctor Who Christmas special.

Warning: plot spoilers forDoctor WhoChristmas Special Joy to the World.

Doctor Whois back with high-energy, heartfelt festive special Joy to the World.

Nicola Coughlan wearing a red jacket and beret in Doctor Who Christmas special “Joy to the World”

Oh, and the Doctor spends a year serving breakfasts and fixing microwaves.

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Starting with…

How Does The Time Hotel Work?

A hotel, but instead of rooms, time portals package deals for all of historys biggest hits.

Doctor Who Christmas Specials header image

Which is just good hospitality, when you think about it.

How Did The Doctor Get The Code For The Briefcase?

How Did Trev Come Back?

Doctor Who The Christmas Invasion TARDIS and robot santas

With technobabble, thats how!

Alas, poor Trev (Joel Fry).

Why Did The Doctor Spend A Year At The Sandringham?

And friendship, of course.

What Did Joy Do With The Star Seed?

As Joy says, The star seed is in me now Villengard are nothing.

Were far beyond them.

And apparently absorb the essences of anybody else they want to, like Joys mother.

On the face of it, this resolution is rooted more in poetry than in science-fiction.

And shes a scientist.

Hold On, Was That Bethlehem At The End?

Its cheeky, for sure.

But its also, in its way, perfectly Christmassy.

Joy to the world, indeed.

Doctor Who Christmas Special Joy to the World is available to stream on BBC iPlayer and Disney+.