Watch the final episode of How I Met Your Mother season 8, and get ready for the season 9 premiere tonight at 8/7c. After nearly a decade of memories from the show it all comes down to one last season. The question that so many of us have had since day one, routed within the title it self, is rumored to finally be answered. Of course, loyal How I Met Your Mother fans have been led on many times in the past, but we can all appreciate the secret being withheld because, well, it led to more seasons. However, this being the final season leaves the writers without much of a choice but to reveal the mysterious mother, so get ready for more fun with all your favorite characters as they make their final stand, tonight on CBS!