This episode goes behind the scenes of A Christmas Carol

All the behind-the-scenes merriment of a good old-fashioned Doctor Who Christmas.

Meet the Doctor and his companions as they set Cardiff alight and go backstage with the stars of the Dickensian Christmas Special.

Michael Gambon talks of swapping his wizard's wand for a taste of the Doctor's time-travelling magic and Katherine Jenkins waxes lyrical about her acting debut. Plus interviews with Matt Smith, Michael Gambon, Katherine Jenkins and Steven Moffat.