In TV: The Christmas Invasion, Jackie Tyler asked if the Tenth Doctor had "anything else that he's got two of?", which was a line that Arthur Dent said to Zaphod Beeblebrox in the 2005 adaptation of The Hitchhiker's Guide to the Galaxy.
Rarely, for Doctor Who, all accounts that present information about Hitchhiker's present it as reality, not fiction, even in accounts where the series is shown to also exist in-universe. Therefore, everything on this template is "reality" as far as the DWU is concerned. Some categorisation may be based upon conjecture. Real world information should not enter into this.
