• 81%
    975 votes
  • Rate this episode
    What did you think?

Season Premiere

How I Met Your Mother: Season 4

4x01 Do I Know You?

  • 2008-09-22T20:00:00-04:00 on CBS
  • 21 mins
  • United States
  • English
  • Comedy

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.