Doctor Who fans will have to wait until 2020 for the next series, although there will be a special episode on New Year's Day to keep them happy.
The eleventh season of the hit series ended on Sunday evening with Jodie Whittaker's Doctor answering distress calls from a battle-scarred planet.
Work has already begun on the next series, which will feature the Doctor and her companions Bradley Walsh, Mandip Gil and Tosin Cole.
Head writer Chris Chibnall said: "We're off again! Well we never actually stopped.
"As Jodie Whittaker's Doctor and friends have been winning the hearts of families across the nation this autumn, we've been busy with a whole new set of action packed adventures for the 13th Doctor.
"We adore making this show and have been blown away by the response from audiences, so we can't wait to bring more scares, more monsters and more Bradley Walsh, Mandip Gill and Tosin Cole to BBC One. Brilliant!"
Whittaker is the first female Doctor and her performance has attracted positive reviews, although there has been some criticism that the series' storylines have become too politically correct.
Before Chibnall signed up, the show's stories had been criticised for being too convoluted.
BBC director of content Charlotte Moore said: "I know Chris and the whole team are already working on a whole new set of exciting adventures.
"In the meantime we've got a very special episode on New Year's Day for everyone to enjoy."
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Whittaker recently told The Hollywood Reporter: "I really can't wait to step back in and get to work again.
"I'm not quite ready to hand it over yet."
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