While How I Met Your Mother’s finale featured a shockingly sad twist, the darkest surprise in the show’s history actually arrived a lot earlier than its final outing. How I Met Your Mother was generally a broad hang-out sitcom, but the series could occasionally deliver some brutal emotional blows. The goofy comedy of How I Met Your Mother made these dramatic moments all the more impactful, as they often arrived during otherwise comedic episodes. Infamously, How I Met Your Mother’s finale featured a sudden tonal shift that even long-time viewers found jarring.

https://screenrant.com/how-met-your-mother-ted-stella-rule-wedding-twist-sad/