Torchwood

Torchwood is a British science fiction television programme created by Russell T Davies, a spin-off from the 2005 revival of Doctor Who which aired four series between 2006 and 2011. The show 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 when it became a co-production of BBC One and Starz. Torchwood is aimed at older teenagers and adults, in contrast to Doctor Who's target audience of both adults and children. The show explored a number of themes, including existentialism, homosexuality, bisexuality, and human corruptibility.