"Last Forever" is the final episode of the CBS sitcom How I Met Your Mother. The episode serves as the 23rd and 24th episode of season nine, and the 207th and 208th episode overall; the episode's two parts are classified as two separate episodes. It aired on March 31, 2014. "Last Forever" received a polarized response from fans and TV critics, primarily in regard to the final twist ending, the relationship between Ted and Robin, and the fate of the series' titular mother. Many viewers expressed considerable disdain for the apparent disregard for character development, while some praised it for tying up loose ends. However, additional praise was directed to the acting, especially Neil Patrick Harris's performance.