The first story in the series "The Pogles" was shown once but never repeated, as it was considered a little too scary for small children.
The title was shown at the start of each episode on a sign leading to "Pogle's Wood". When the series was rediscovered and issued on video and DVD, creator, Oliver Postgate suggested moving the apostrophe across so the wood belongs to all the Pogles, not just Amos Pogle, head of the family.
Tog was a stuffed toy that had been brought to life in order to defeat the Witch and who went on to live with the Pogles.
Strictly speaking this isn't stop frame animation (a series of still frames). The puppets were posed by hand, then filmed momentarily, filming would then stop, the puppet/s would be re-positioned, then filmed again, and so on, with the timing adjusted later in the editing. This means that scenes filmed in the English countryside have live action breezes blowing the trees and plants, liquids move naturally, flames flicker, and so on, lending more of a sense of real life to the animation, and giving it all an extra unique charm.