Are you a TV Fanatic?
Sign up for our daily newsletter to receive personalized television news for free!
Watch How I Met Your Mother Season 6 full episodes online, free and paid options via our partners and affiliates.
Will Marshall be the victim of food poisoning? That's one of the questions this week's episode takes a long, hard look at.
When Ted is faced with an important decision that might affect his future with Zoey, the gang expresses their true feelings about her.
When Marshall and Barney argue over the destruction of the Arcadian Hotel, Robin and Lily try to mix the right combination of cocktails that will force them to make up.
When Barney tries to bond with his father, he asks the gang to help make his life seem more exciting by lying about their own lives.
Lily and Barney react badly when Marshall finally quits his job at Goliath National Bank to take a volunteer position at an environmental organization.
John Lithgow guest stars on How I Met Your Mother this week. He plays the major role of Barney's father.
Barney realizes he has true feelings for Nora this week, prompting him to assume something is wrong. Also, Robin dates a guy who acts like a dog.
Marshall regains his desire to do something about the environment on this episode, while Ted runs into the Captain.
Barney comes up with a name for February 13 on this episode: Desperation Day. While he honors lonely women, Marshall is shocked by Lily's gift for him.
Katy Perry guest stars on this episode of How I Met Your Mother. The singer comes on board as a woman who gets Barney to open up.
The gang goes to Minnesota with Marshall this week in order to bury his father. But things take an interesting turn when this character runs into a former bully.
Marshall and Lily visit a doctor on the first episode of 2011. They want to move the pregnancy process along.
Marshall and Lily discover shocking news on this episode, the final one before a holiday break. Elsewhere, Robin gets a new job.
Can men and women be friends? Ted and Zoey set out to test that question on this episode, which involves time spent with The Captain.
Ted prepares a Thanksgiving feast for the gang this week. Former Lost star Jorge Garcia makes an appearance.
It's the return of Robin Sparkles! Viewers enjoy more of this alter-ego after Barney finds a copy of the show Space Teens.
A fundraiser at the Natural History Museum is the focus of this week's episode. Aptly, the half hour is titled "Natural History."
Zoey signs up for Ted's class this week and gets his students on her side of the fight to save a hotel from being torn down. In another storline, Marshall and Lily spy Robin in a Halloween parade.
Robin grows more and more annoyed by her perky new co-anchor on this episode. She really has to do something about Becky.
Jennifer Morrison makes her first appearance on this week's episode. As a result of meeting her, Ted grows conflicted over his dream job.
The group teases Robin about not truly being a New Yorker on this week's episode. How does she try to prove them wrong? By attempting to catch a glimpse of Woody Allen.
Barney uses his patented tricks to get Ted to take a job designing a new building on this episode. Elsewhere, Robin drunk dials Don.
Barney continues to search for his father this week. Also, Robin sets Ted up on a doomed blind date.
In the sixth season premiere, Marshall really wants to start a family with Lily Pad. Ted reunites with Cindy, and Robin is heartbroken over Don.