> Find out everything we know so far about the Christmas special in our news summary.

Written by Steven Moffat, ‘The Time of the Doctor’ airs at 7.30pm on Wednesday 25 December on BBC One. To whet your appetite, here are some teasing lines of dialogue from the trailers and clips released so far…

» “And now it’s time for one last bow, like all your other selves, Eleven’s hour is over now, the clock is striking twelves.”

» “You will die in silence, Doctor.”

» “The siege of Trenzalore is now begun.”

» “I may be a bit rusty in some areas, but I will glances at a manual.”

» “If you want my life, come and get it!”

» “Everything ends, Clara …sooner than you think.”

» “Hello, the Oswalds!”

» “Emergency: you’re my boyfriend.”

» “What are you? Why do I keep forgetting you?”

» “Help him change the future, do it!”

» “But you don’t die. You change – you pop right back with a new face.” – “Not forever. I can change 12 times. 13 versions of me. 13 silly Doctors.” – “But you’re number eleven, so…” – “Are we forgetting Captain Grumpy? I didn’t call myself the Doctor during the Time War, but it was still a regeneration.”

» “Merry Christmas!”

» “Is that a new body?” – “This old thing, please! I’ve been rocking it for centuries.”

» “The Time Lord has entered the trap.”

» “I need you! I’m cooking Christmas dinner!” – “I’m being shot at by Cybermen!” – “Well, can’t we do both?!”

» “The Doctor is regenerating.”

> Buy the 50th anniversary special on DVD on Amazon.

> Buy the 50th anniversary special on Blu-ray on Amazon.

Watch the 50th anniversary trailer…

Are you looking forward to ‘The Time of the Doctor’? Let us know below…