How I Met Your Mother: Season 4 Episode 1: Do I Know You?
Starring: Josh Radnor, Jason Segel, Cobie Smulders, Neil Patrick Harris, Alyson Hannigan, Sarah Chalke, Lyndsy Fonseca
Length: 22 minutes
How I Met Your Mother: S04E01 Description: Ted and Stella get engaged, but Ted soon learns that he doesn’t know anything about her. Meanwhile, Barney confesses to Lily that he’s in love with Robin