Comcast: can you please provide us a status update on what Discovery Channel has told you about this missing finale episode?
A simple check of epguides.com shows: a) the finale episode title is "Final Fury" b) Discovery's posted episode numbering is one higher than the web site, but that shouldn't be a point of confusion for resolving this problem.
People need to remember that the production company supplying the show has ultimate control of when a particular episode may be on the original channel, or any other form such as ON DEMAND.
By now you should have noticed that not only is it not on ON DEMAND, but it has not been reshowing on the original channel a week later before the next new episode (normal procedure during the seasonal run). This seems to be common practice for shows that may be getting better ratings. Especially for final episodes of a season.
Possibly. Or maybe they've just messed up. Post-season episode 724 was recently posted but 722 remains missing. Surely people care less about these extra "rehash the season" episodes like 723 and 724 if they didn't view the end of the series.