Com'on people...this is stupid. Do you really think Sci-Fi is going to cancel this series after the long advertising campaign and this being the final season anyway? They'll let it play out....and yes, for the entire 20-episode order. They'd have a riot on their hands from fans if they'd cancel it before the last half of the season. If you thought Farscape was bad, you haven't seen nothing yet.
Besides, isn't there several other venues/outlets now where you can get access to the episodes? So I'm just wondering how relative these ratings are anymore. Not to mention DVR time-shifted viewing.