Craig Thomas and Carter Bays' CBS sitcom "How I Met Your Mother" ran for nine seasons from 2005 to 2014, and was so popular that it even launched a spin-off series. Despite its impressive longevity, however, it's safe to say that not every episode is a winner ... which makes sense since there are over 200 episodes in the series. There are actually a handful of seriously terrible episodes of the ensemble comedy — which stars Josh Radnor as Ted Mosby, the guy who takes forever telling his kids about how he met their mother (with adult Ted voice by the late Bob Saget) — so which one do fans think is the absolute worst, if we're using the IMDb ranking as their final word on the matter?

The answer is a little complicated, because the series finale, "Last Forever," is split into two parts ... and the second part, appropriately subtitled "Part Two," has the dubious...