Production began on the Christmas special on Saturday October 1st 2016 and principal
photography wrapped on Monday December 5th 2016.
The spaceship at the beginning is named the Hyperion IV. This is in honour of one of Rhys Jones'
favourite classic Doctor Who stories Terror Of The Vervoids (which makes up part of The Trial
Of A Time Lord series) which is set aboard the Hyperion III.
A pivotal scene of the episode was filmed at the Black & White Café in Grangetown, Cardiff.
The café has also been used as a location in The Sarah Jane Adventures, for the episode
Warriors Of Kudlak.
Although not named in the episode, all of Bradley's and Liam's dates are named after Doctor
Who companions.
Isabelle Burman, who plays Bradley's date Donna, also appeared as a different character (Ffion)
in the Series 1 episode Waiting Four.