Ahead of Hell Bent, the BBC’s Doctor Who advent(ure) calendar puts us in seasonal mood! It also gives us reminders of Gallifrey through the years.

It’s worth looking at the link if only for moments from The War Games, Deadly Assassin and others, right through Day of the Doctor to tomorrow’s episode.

Alternatively

If you want something grittier, maybe involving the Time Lord president, and lots of cloister bells, try this preview:
http://www.bbc.co.uk/programmes/p039zg5n/player