Last night, fans said goodbye to Matt Smith in his final performance as Doctor Who in the annual Christmas Special "The Time of the Doctor", while getting the first look at the new Time Lord, played by Peter Capaldi. Today, BBC has released a 12-minute behind-the-scenes video, which will include spoilers if you didn't tune in last night. Matt Smith and Jenna-Louise Coleman discuss their real families, as compared to their characters' families, and much more. In addition, we have a clip from "The Time of the Doctor" which features Matt Smith's regeneration and the debut of Peter Capaldi, and a deleted scene featuring the doctor and Clara discussing why Clara hates Christmas.