Torchwood House (tie-in website)

A Torchwood House website was launched by the BBC in conjunction with the airing of Tooth and Claw.

Under the "View Lunar Surface" link on the Observatory page, there is a reference to the Tycho crater of the moon being a source of "unusual signals" since.

The "Weddings Quotes" page features a photograph of Bernard Cribbins at a wedding. The site launched more than a year and a half before Cribbins first appeared as Wilfred Mott in Voyage of the Damned.