Earlier tonight the preview from The End of Time part one was shown during the Children in Need telethon. The clip shows the Doctor visiting the Ood Sphere, meeting Ood Sigma, and the other Ood. The preview is below.

David Tennant also left a message during the show asking for people to donate, and there is also a new trailer for Doctor Who Dreamland, which starts online tomorrow on the official website and on the BBC 1 Red Button.