Watch How I Met Your Mother Season 6 Episode 21 Online Stream

How I Met Your Mother Season 6 Episode 21 can be watched on Monday on April 18, 2011 at 8:00pm EDT on WCBS (CBS) TV channel. Title of the brand new episode is: Hopeless. Synopsis of the episode is: Barney tries to make his life seem more exciting as he bonds with his father (John Lithgow); Robin encounters a guy she likes. Read more...