The centrepiece of the day took place at the Westfield Centre in Stratford City, where Matt Smith, Karen Gillan and Arthur Darvill signed copies of the set at HMV, and was followed later in the afternoon with a live Q&A session with Jo Whiley:
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Earlier in the day Matt Smith appeared on BBC Breakfast to chat about his appearance on Children in Need and the forthcoming next series of Doctor Who. This is available to watch in the United Kingdom via the BBC News channel (14:54, to 28th Nov).
Later both he and Karen Gillan popped into Fearne Cotton's studio on BBC Radio One to continue promotion, which was also broadcast via the station webcam:
Watch the Fearne Cotton Interview (two parts)
The duo also pre-recorded an interview with Steve Wright before heading off to Westfield; this was broadcast on his afternoon show just after 3:40pm.
Listen to the Steve Wright Interview
Steve Wright Interview, BBC, via BBC iPlayer