Doctor Who: The Aztecs

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One of the hands-down best stories of William Hartnell’s era, The Aztecs is also one of the best time-travel-ethics tales in the show’s entire history. No chronic hysteresis, no parallel universes, no Time Lords, no time loops, none of that technobabble. It’s about someone who wants to change the established history of one of the Earth’s most prolific lost civilizations, allowing it to continue thriving beyond when history recorded that it ceased to exist. And the Doctor must stop that person and keep things on track, without interfering in history even further in the process. That the person wanting to make the changes is a fellow TARDIS traveler adds a great deal of drama and depth to what was still considered, at the time, tea-time entertainment for kids. (more…)