* Astronomy

Torchwood is a British science fiction television programme created by Russell T Davies. The series is a spin-off from Davies' 2005 revival of the long-running science fiction programme Doctor Who. The show has shifted its broadcast channel each series to reflect its growing audience, moving from BBC Three to BBC Two to BBC One, and acquiring US financing in its fourth series. In contrast to Doctor Who, whose target audience includes both adults and children, Torchwood is aimed at an older audience.

Original run 22 October 2006 - present