Watch How I Met Your Mother Season 8 Episode 9 online via TV Fanatic with over 7 options to watch the How I Met Your Mother S8E9 full episode. Affiliates with free and paid streaming include Amazon, iTunes, Vudu, Netflix, YouTube Purchase, Google Play, and Verizon On Demand.
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Robin considers one last fling with Barney while Ted becomes Marvin's nanny on How I Met Your Mother.