20 Mind-Blowing Facts You Never Knew About How I Met Your Mother
12. The Most Viewed Episode Is The Finale...
It's not really that surprising. Since the very start the show had been building to its finale, with the titular event driving the plot, so it's only natural that the final two-parter, Last Forever, would end up the show's most watched episode, bringing in 13.13 million viewers.
With shows built on overarching stories the ending can always be a little unfathomable to those not au fait with the material (see Lost), but not so here. Although there's a lot of in-jokes (this is How I Met Your Mother after all) the episode can work for someone with more of a passing knowledge of the show; meeting the mother doesn't have the same impact knowing the journey, but it'd still be sweet.
Previously the most viewed episode was Season 1's The Pineapple Incident, still held by many as the high watermark for the show.