Template:Transmat:Doctor Who
From Tardis Wiki, the free Doctor Who reference
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. The story that made it to screen was based on the non-fiction book, Silent Spring, and therefore contained an obvious warning against the environmental dangers of pesticide.