Template:Transmat:Doctor Who
Planet of Giants was a First Doctor serial which had a long and interesting gestation. Its basic conceit — that of miniaturising the Doctor and his companions — was to have been the very first story, but the technical challenge was too great for the very first production crew. It was therefore rejected by producer Verity Lambert, but script editor David Whitaker continued to push the topic. By its third writer, the "miniaturisation idea" had become entertained with an important, pro-evironment message. The script that emerged was based on the non-fiction book, Silent Spring, and therefore contained an obvious warning against the environmental dangers of pesticide.