TARDIS were not, its weight would shatter the Earth's surface. In the tie-in novels, the interior of the TARDIS has been known to contain an entire city, encompass an entire parallel Earth, and even dwarf Gallifrey itself when turned inside out. A distinctive architectural feature of the TARDIS interior is the roundel. In the context of the TARDIS, a roundel is a circular decoration that adorns the walls of the rooms and corridors of the TARDIS, including the console room. Some roundels conceal TARDIS circuitry and devices, as seen in the serials "The Wheel in Space" (1968), "Logopolis", "Castrovalva" (1981), "Arc
That Which Survives that the landing party had survived because the reproductions were so perfect that they experienced regret about killing. The original story outline was written by D.C. Fontana under the pseudonym Michael Richards. In this outline called "Survival", Losira is more brutal, encouraging the crew to turn on each other and fight. That Which Survives "That Which Survives" is the seventeenth episode of the of the American science fiction television series "", first broadcast January 24, 1969, and repeated July 29, 1969. It was written by John Meredyth Lucas, based on a story by D.C. Fontana under the pseudonym Michael Richards