firstly, the extras are superb. the documentary is a joy,with stories about behind the scenes, and interesting ones such as a few episodes in, the iron cross on davros's right hand man disappeared, due to its nazis overtones!.then there is the programme itself. micheal wisher easily being the best davros ever.the guy method acted, by blinding himself by putting a bag over his head in rehearsals! the sets, the acting, all brilliantly superb, with a cracking story. it all puts todays doctor who to shame!