Primeval/Fridge


 * Fridge Brilliance - As noted below, Season 1's In Spite of a Nail ending can explain virtually any "inconsistency" in the second season (ie: Abby suddenly knows martial arts and loses interest in Stephen; Connor becomes more reserved but has actually fallen in love with Abby; Stephen's alleged girlfriend Allison is never mentioned again, and neither is Connor's friend Duncan). These changes are even more plausible when you realize that
 * In Season 4, Duncan features once as the civilian of the week.
 * Fridge Horror - Emily's  fate. In 5x02, Abby gives Matt a newspaper article that tells him what happened to Emily once she went back to her own time:   She probably did not live a happy or healthy life in her own time, but fortunately