The bulk of the tape comprises three complete episodes. As a result of the BBC’s destruction of valuable archive material, they are the only remaining segments of their respective serials. These are part of a Yeti adventure, episode two of 1967’s “The Abominable Snowman”; episode three of “The Enemy of the World” (1968) and episode two of “The Space Pirates” (1969). While rewarding for the serious fan, watching isolated episodes from incomplete serials does take commitment, such that a booklet with detailed synopses would have made everything much more accessible. Even so, the sight of a Yeti in action or Troughton in the duel roles of the Doctor and the dictator Salamander remain notable pieces of vintage television history. –Gary S. Dalkin