Doctor Who - Series 4 Video Preview.

At the BBC Doctor Who site, you can watch a preview of Doctor Who series 4, and i cant see Captain Jack in the clip. The new series looks awesome, especially with Catherine Tate as the new sidekick. You can also see a quick view of Martha Jones, and a few new monsters. No official word on when the new series will be on, only spring 2008, i guess we will just have to wait a little longer.