Abstract
What is TARDIS?
Doctor Who
Doctorin' the Tardis Space / Time List of Torchwood items List of Doctor Who items Dying in the Sun
Doctorin'_the_Tardis-Formats_and_track_listing Space_/_Time-"Time" List_of_Torchwood_items-TARDIS List_of_Doctor_Who_items-Atom_Accelerator Dying_in_the_Sun-TARDIS
"Doctorin' the Tardis" was given an international single release on 23 May 1988. In the US it was re-issued in 1991, containing The KLF's "What Time Is Love? (Pure Trance Original)". The formats and track listings are tabulated below:Key DR - "Doctorin' the Tardis" (radio edit / 7" Mix) (3:37) DC - "Doctorin' the Tardis" (Club Mix / 12" Mix) (8:15) DM - "Doctorin' the Tardis (Minimal)" (4:28) DV - "Doctorin' the Tardis (Video Mix)" (2:20) GT - "Gary in the Tardis" (3:26) GM - "Gary in the Tardis (Minimal)" (4:08) GJ - "Gary Joins The JAMs" (usually 6:22) W - "What Time Is Love? (Pure Trance Original)" (7:06)  
Continuing from the ending of "Space", the other Amy reveals that she is from a few moments in the future, and is able to come into the current outer TARDIS because "the exterior shell of the TARDIS has drifted forwards in time". The other Amy knows what to say and do because, from her perspective, she is repeating what she heard herself say earlier on. The Doctor sends the current Amy into the TARDIS within the current TARDIS, in order to "maintain the timeline". The two Amys take a moment to flirt with each other before the current one departs, much to the Doctor's exasperation. However, not long after the current Amy has left, Rory and Amy enter through the door of outer TARDIS explaining that the Doctor, from their perspective, has just sent them into the inner TARDIS. The current Doctor promptly sends the current Rory and the now-current Amy through the inner TARDIS. The Doctor then explains that he will set up a "controlled temporal implosion" in order to "reset the TARDIS", but in order to do so he must know which lever to use on the control panel. Moments after he speaks, another Doctor enters though the outer TARDIS door and tells him to use "the wibbly lever", which he quickly operates, then steps into the inner TARDIS to tell his past self which lever to use. The inner TARDIS dematerialises while the outer TARDIS (being the same TARDIS) does the same, and the Doctor assures Amy and Rory that they are now back in "normal flight", and then advises Amy to "put some trousers on". 
 The Doctor's TARDIS is heard from offscreen in "End of Days".  
A componnent in the TARDIS, which takes the form of an orb with what appears to be pins in it. In "The Curse of the Black Spot", the Doctor admits that it's what "steers" the TARDIS. 
 In the novel not only does the TARDIS not appear, but it is not even mentioned that the characters have travelled through time to the story's setting.  