Doctor Who Torchwood Theme
The original Torchwood Institute was founded in 1879 by Queen Victoria, to defend the British Empire against the threats posed to it by alien forces. Torchwood became the theme of series two being mentioned in almost every episode.

The Parting of the Ways
The Anne Droid says ‘What ancient building was the cobalt pyramid built on’ the correct answer is Torchwood

The Christmas Invasion
Harriet Jones takes responsibility for authorising Torchwood to destroy the Sycorax ship

Tooth and Claw
Queen Victoria starts the Torchwood Institute to protect the British Empire against alien threats and the Doctor

School Reunion
Some websites are blocked by Torchwood

Rise of the Cybermen
A broadcast on Rose’s phone refers to a survey by Torchwood, and Pete Tyler asks his friend Stevie about his work at Torchwood

The Idiot’s Lantern
Some Police officers worry about Torchwood getting involved

The Satan Pit
The crew are representing The Torchwood Archive

Love & Monsters
Victor mentions the Torchwood files

Fear Her
A commentator can just be heard mentioning Torchwood after the Olympic crowd disappears

Army of Ghosts
The Doctor meets Torchwood

The Runaway Bride
The Empress of the Racnoss uses an old Torchwood buidling

The Sound of Drums
Jack reveals to the Doctor that he resurrected Torchwood in his honour