New Tokyo

From Tardis Wiki, the free Doctor Who reference

New Tokyo was a city on New Earth where Grant Markham lived. In the year 2191, New Tokyo was transported into a Marston Sphere. Grant used his computer programming skills to defeat a giant robot dinosaur terrorising the city. The Sixth Doctor saved New Tokyo. At the end of the affair, Grant went with him to become his companion. (PROSE: Time of Your Life)