With Billie Piper as Rose Tyler back in action alongside Peter Capaldi and Joanna Page (as a slightly Welsh Queen Elizabeth I), the episode was packed with mind-bending, parallel universe, cosmic painting-filled ups and downs.
Whovians were treated to a back catalogue of famous quotes from previous episodes, including David Tennant's heart-wrenching "I don't want to go".
So, what was the plot? Well, we kinda' reckon you need to watch it to understand fully, but here goes...The Doctor (John Hurt) remembers making the horrifying decision to kill his people and destroy his home planet of Gallifrey to save the Universe.
But by teaming up with his future reincarnations, Matt Smith, David Tennant and the rest of the Doctors (including Tom Baker and Peter Capaldi) change history and save the planet by suspending it in a painting. But can it be rescued and restored?
We're already counting down to the Christmas episode!
We got pretty excited on Twitter, but these super fan 'Whovians' kind of pushed the excitement boat out. Take a peek at some of our favourite Tweets...
Just out of the live cinema screening of the Doctor Who 50th. It'll take weeks to shift this nerdrection. Phenomenally good.— Bouncy/Nathan (@Bouncybhall) November 23, 2013
Doctor who makes me proud to be British. pic.twitter.com/vCVRkWh7uw— Iro(n) M(a)iden (t) (@ASkylitDinosaur) November 23, 2013
Doctor Who have literally just changed the past and future of The Doctor in one episode. I was not emotionally prepared for that.— Jorja Louise. (@jorjamillerxo) November 23, 2013
Steven Moffat you genius, best episode of Doctor Who I've ever seen in a long time! #TheDayOfTheDoctor— Jack Park (@_jackpark) November 23, 2013
Although this guy went and ruined our nerdgasm...
Let's all celebrate the 50th Anniversary of Doctor Who by never getting laid.— Johnny Ryan (@MrJohnnyRyan) November 23, 2013
Tweet us your thoughts on the episode #DoctorWho.
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