Survivors is overall a positive show - it might start off with the near-annihilation of the human race but really it's about the reaction to the death, one that is quite often positive. To some degree the likes of Abby, Greg, Charles Vaughan and even the likes of Arthur Wormleigh and Ann Tranter are thriving, using skills and knowledge that would have been locked away in their day-to-day lives. Maybe even Jenny was even wetter and thicker in day to day life before the plague, though I'll admit that is a push. Terry Nation returned to script the sixth episode (he wrote seven of the first 13 for the show before leaving) and it makes this theme explicit in the form of Jimmy Garland.
