... And Frontier in Space is another great Pertwee off-earth one.
Pity Ecclestone did not have another year to grow into the role.
Besides the Second Doctor's anti-pacifist stance, I don't like Troughton as a person after reading about his biography. Second family on the side, a fetish for urinating in public (on golf courses), etc. Everyone considered him a very strange man, including Pertwee, who thought he was very eccentric indeed.