Tomorrow (20th August) see the the final complete Doctor Who adventure featuring William Hartnell as the First Doctor, arrive on DVD. In order to promote the release of Planet of Giants, BBC Worldwide have uploaded a couple of preview clips to their YouTube channel; in the first item, Carole Ann Ford talks about working on the serial, whilst the second item sees the late producer Verity Lambert discussing her thoughts about the Doctor's personality and William Hartnell's portrayal.Other recent features uploaded by BBC Worldwide include the original theme music, planning a regeneration, evolving the Second Doctor, recollections on The Enemy of the World, and the casting of Peter Cushing and Roy Castle in Doctor Who and the Daleks.