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?
 * Not necessarily - The actual Nefertiti disappeared from the historical record, making this a historical in-joke.


 * How does Riddle, who is from early twenth Century Africa know about Anestetic?
 * Anaesthetic was invented long before the twentieth century. Incidentally, it's doubtful he's from Africa, but England instead, where Anesthetic was known from the 1700's.


 * If its just to change a bulb, why ask Brian to come round?
 * As implied by dialogue in the episode, it wasn't the light bulb that was the problem but the fitting. Rory couldn't work it out initially so got his Dad round.


 * In this story Neferteti hates her husband, but in actual history, the two were quite close.
 * she was bored by him (after over 14 years of marriage); this doesn't necessarily mean she hated him. He also had other consorts.