Torchwood

The Doctor has never made an appearance in 'Torchwood'.

The show was originally supposed to be called "Complications".

"Torchwood" is an anagram of "Doctor Who". When the first series of 'Doctor Who' (2005) was being made, television pirates were desperate to acquire the preview tapes. One of the people in the office had the idea of labeling the tapes with the anagram Torchwood rather than Doctor Who, as a security measure to disguise the tapes when they were delivered from Cardiff to London. Writer Russell T. Davies liked this idea so much that it later inspired him to use it as a title when creating this spin-off series.