The beginning of a wonderful era for Dr Who,with so much publicity in the ensuing years with spin-off comics,books and magazines.Shame so much was junked from Pertwee's era,but we are lucky to have it all to enjoy again and again.My favourite era and one which I watch constantly and never tire of.Mr Pertwee we salute you!
The Pertwee era was when I outgrew what I called "The Wesley Eugene Roddenberry Mindset," which I later changed to a reworking of a Dead Kennedy's lyric, "Wesley's Humans Uber Alles. S-T-N-G Uber Alles." I can even point to specific instances:
"Doctor Who and the Silurians", Episide 4: The Doctor extends his hands to the Silurian who had killed Squire and Baker and asked, "Hello. Are you a Silurian?"
"The Ambassadors of Death", Episode 7: The Doctor respects General Carrington's dignity and well-meaning by telling Carrington that he understood why he did what he did.
"The Curse of Peladon", Episode Four: the denouement, when the dying Hepesh wishes King Peladon success and Peladon does not punish the rebels because they all ultimately wanted the same thing -- what was best for their society.
The strength of Doctor Who is ultimately that the Doctor is not human, and thus can explicitly point out our flaws and hypocrisies because s/he is external and, in some way, above our foibles. While Roddenberry was in charge of _Star Trek_, it never could grow to this level because he believed that the only way humanity survived was "my way or the highway."