This week, we shine a light on the work of our Third Doctor, Jon Pertwee. We explore a few stand-out episodes from a truly stellar run, that helped to steer “Doctor Who” into becoming not only an increasingly popular program for the family, but one that became synonymous with the British identity and its pop culture through the 1970s and well beyond.

From space hobo to action hero, the Doctor made a dramatic change in persona, and once again, brought new (regenerated?) life to a show just it when it was most needed. We watch as he battles his nemesis for the first time on screen in “Terror of the Autons”, sets out into space again in “Carnival of Monsters”, and meets the legendary and beloved Ms. Sarah Jane Smith in “The Time Warrior.”