Egads, I disliked last week’s episode of Doctor Who, “The Rings of Akhaten.” There was an overlong musical number in an incomprehensible alien language. There was a planet-sized jack-o-lantern who shrivels under the power of infinite potential (seriously). There was a…nope, I can’t think of anything worse than a planet that sucks emotions. Fortunately, this week’s episode, “Cold War,” is markedly better. Although it’s not the best episode, it brings enough Who-ishness to blot out the pumpkin-faced planet from my mind.