Theory:Doctor Who television discontinuity and plot holes/Dinosaurs on a Spaceship


 * At the end Nefferteti stays with Riddle, but doesn't that change history?
 * How does Riddle, who is from early twenth Century Africa know about Anestetic?
 * If its just to change a bulb, why ask Brian to come round?
 * In this story Neferteti hates her husband, but in actual history, the two were quite close.