I finally finished series three of the original version of Survivors today, overall I'd have to say I enjoyed the show, the third series wasn't as good as the first two but it's still worth watching, the third series feels like it needed a couple more episodes to properly wrap up the story properly but I didn't find it as disappointing as the finales of some recent series.
In comparison to the recent remake of Survivors I'd have to say this was the better version of the two, I enjoyed them both but the original series had a more credible interpretation of the aftermath ( in my opinion ) of the plague.
A show well worth watching if you ever get the chance.