Directly following on from The Frontier in Space, The Doctor and his assistant Jo Grant land on the jungle planet of Spiridon where they meet up with a group of Thal commandos on a secret mission to prevent the Daleks mastering invisibility.
Its only one scene in the first episode but when Jo discovers the dead pilot of the Thal space ship, he’s wearing a helmet that is exactly the same design as the Earth helmet worn by the Doctor in the previous story although it’s a white one now. We’re probably not meant to notice production details like that but there you go; the past is now trapped in digital amber.
Interestingly before watching this a couple of months back, I had always taken the Thal suits to be military fatigues or general survival suits but seeing the pilot with the helmet in place I find myself revaluating them now because you can see the ribbed bands in the arms, wrists, ankles and neck resemble so many previous space suit designs.
Steve