We kick off with a William Hartnell classic - a sublime character drama set in 15th century Mexico that saw Doctor Who confront the dangers of time-travel and changing history for the first time...
10. The Aztecs (1964) - Four episodes - written by John Lucarotti
Narrowing down Doctor Who's (as-of-writing) 239 stories to the 10 best was an incredibly difficult task, but one serial that was always guaranteed to make it into this writer's own personal 'Best Of' list is John Lucarotti's fantastic jaunt into history, 'The Aztecs'.
William Hartnell's first Doctor struck gold early on - his sixth story is his very best, with a multi-layered and powerful script,