These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Fridge Logic: Averted, in that the show's very premise provided the answer to a couple of questions that earlier Walking the Earth series such as Route 66 had left unanswered: why don't the protagonists just settle down in one place, and why solve the problems themselves instead of calling the police?
The Untwist: The series finale is a two-part story. In Part 1, the One-Armed Man is caught and held in jail for an unrelated crime, but is inexplicably bailed out by someone else. He tells the bail bondsman that he didn't kill Helen Kimble but saw who did and it wasn't her husband. When Kimble breaks into the bondsman's office later, he finds the bondsman dead, murdered, and sees in the bondsman's file that the name of the person who paid for the One-Armed Man's bail is... Leonard Taft, Kimble's own brother-in-law! In the week that passed in between the initial airing of both parts, specualtion that Len would turn out to be the killer was so rampant that Las Vegas oddsmakers picked Len to be the odds on favortite for being Helen's killer. In Part 2, it turns out that, nope, the One-Armed Man was just lying to the bondsman whom he then murdered. He really did kill Helen. It even turns out that Len wasn't even the guy who paid the One-Armed Man's bail. Instead it was a next-door neighbor who had witnessed the One-Armed Man murdering Helen and told no one about it, who paid the bail using Len's name.
As one of the producers said later, "If it hadn't been the One-Armed Man who did it, it would have been a joke. (Kimble) would have looked like a jerk. What was he doing for four years, chasing the wrong guy?"
The Woobie: Kimble, of course. It's an essential part of his Plot Armor. Everybody Kimble meets will either 1) instantly believe he's innocent, 2) will realize he's innocent by the end of the episode, or 3) be a guilty criminal. And Gerard.
Iron Woobie: Kimble. Between grieving his wife and literally running for his life, you can count on one hand the number of times the poor guy doesn't seem to be this close to bursting into tears. The iron comes from his relentless determination to clear his name and find his wife's killer.
Memetic Mutation: Someone who's obviously, visibly guilty of something blaming "the one-armed man" (also doubles as Analogy Backfire, seeing as how Kimble was telling the truth).