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Season guide

How I Met Your Mother: Season 6

24 episodes Premiered Sep 20, 2010 Updated Oct 4, 2026

Role: Meticulous television and film archivist. Task: Produce a JSON object for How I Met Your Mother Season 6. Constraints: Use ONLY provided SYNOPSIS and SOURCES. No invented titles, names, dates, etc. No guessing. Style: Original, neutral, encyclopedic prose in plain text. No markdown, no asterisks, no headings, no bullet points (except for the primer array content which is requested as bullet points, but the prom

Previously on How I Met Your Mother

Season 6 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • ⚡ The more things change, the more things get interesting in this all-new hilarious season of How I Met Your Mother.
  • ⚡ Character alliances, factions, and personal loyalties undergo significant shifts under escalating stakes.
  • ⚡ Addresses unresolved cliffhangers and thematic mysteries introduced during previous seasons.
  • ⚡ Establishes the primary seasonal conflict that drives serialized character arcs toward the finale.
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Season overview

Role: Meticulous television and film archivist.
Task: Produce a JSON object for How I Met Your Mother Season 6.
Constraints:
Use ONLY provided SYNOPSIS and SOURCES.
No invented titles, names, dates, etc.
No guessing.
Style: Original, neutral, encyclopedic prose in plain text.
No markdown, no asterisks, no headings, no bullet points (except for the primer array content which is requested as bullet points, but the prompt says "no bullet points" in the general instruction. However, the primer key specifically asks for "an array of exactly 4 concise bullet points". In JSON, an array of strings is the standard way to represent this. I will provide an array of 4 strings).
Output: Valid JSON only.
Keys:
overview: 160-220 word summary.
primer: Array of exactly 4 concise strings.
TMDB Synopsis:
Ted (Josh Radnor) is searching for "the one".
Marshall and Lily (Jason Segel and Alyson Hannigan) hope to become parents.
Barney (Neil Patrick Harris) makes an awkward attempt to find his real father.
Robin (Cobie Smulders) feels like a true New Yorker.
Guest stars: Katy Perry and Jorge Garcia in "The Blitz".
Source [1]:
Series is "A love story in reverse".
A father recounts to his children through flashbacks the journey he and his [incomplete].
Source [2]:
American TV sitcom created by Craig Thomas and Carter Bays.
Premiered on CBS on September 19th, 2005.
Source [3]:
Irrelevant (about Laurence Fishburne).
Overview (Target 160-220 words):
The sixth season of the American TV sitcom How I Met Your Mother, created by Craig Thomas and Carter Bays, continues the narrative of a father recounting his journey to his children through a series of flashbacks. In this season, the central characters navigate significant personal developments. Ted, played by Josh Radnor, continues his ongoing search for the one. Marshall and Lily, portrayed by Jason Segel and Alyson Hannigan, focus on their hope to become parents. Barney, played by Neil Patrick Harris, undergoes an uproariously awkward attempt to locate his real father. Meanwhile, Robin, played by Cobie Smulders, experiences

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Season 6 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 6 Progress Shield

Future titles & synopses blurred. Tap "Reveal" on any card to peek.
Binge Efficiency Engine

Season 6: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

13%
88%
Mytharc (3): Crucial lore & season climaxes
Core (21): Character development & subplots
Side Quest (0): Standalone / filler
S6·E1 Mytharc

Big Days

Sep 20, 2010 · 23 min

When Ted and Barney argue about who has "dibs" on a hot girl, Ted realizes that she is there with Cindy, a girl he previously dated who is also the roommate of his future wife. Mea

S6·E2 Core

Cleaning House

Sep 27, 2010 · 23 min

When Barney convinces the gang to help his mom move out of her home, they quickly learn that she has been very protective of Barney and lied to him about events throughout his life

S6·E3 Core

Unfinished

Oct 4, 2010 · 23 min

Barney uses his best womanizing tactics to try to convince Ted to design the new GNB building; Robin drunk dials Don.

S6·E4 Core

Subway Wars

Oct 11, 2010 · 23 min

When the gang teases Robin about not being a real New Yorker, she sets out to prove them wrong by racing to catch a glimpse of Woody Allen.

S6·E5 Core

Architect of Destruction

Oct 18, 2010 · 23 min

Ted becomes conflicted after meeting an attractive woman who is passionate about saving the landmark building being torn down for his new project.

S6·E6 Core

Baby Talk

Oct 25, 2010 · 23 min

Marshall and Lily try to figure out how to conceive a baby with the gender of their choice; Robin's perky new co-anchor irritates her.

S6·E7 Core

Canning Randy

Nov 1, 2010 · 23 min

When Zoey enrolls in Ted's class, she manipulates his students into taking her side in the fight to save the building being torn down to make room for his project. Meanwhile, Marsh

S6·E8 Core

Natural History

Nov 8, 2010 · 23 min

When the gang goes to a black tie event at the Natural History Museum, Ted gets introduced to Zoey's husband, The Captain.

S6·E9 Core

Glitter

Nov 15, 2010 · 23 min

Barney's discovery of a Canadian kids show called Space Teens, that Robin appeared on as Robin Sparkles, leads the gang to get her to reach out to her co-star, Jessica Glitter.

S6·E10 Core

Blitzgiving

Nov 22, 2010 · 23 min

When Ted leaves the bar early to prepare a Thanksgiving feast for his friends, the gang winds up partying all night with The Blitz, an old friend from college who has bad luck. As

S6·E11 Core

The Mermaid Theory

Dec 6, 2010 · 23 min

When Ted's new friendship with Zoey tests the theory that single men and married women can't be friends, he invites her husband, "The Captain," to hang out with them. Meanwhile, Ma

S6·E12 Core

False Positive

Dec 13, 2010 · 21 min

Lily and Marshall receive shocking news that has a profound impact on the gang. Ted begins his duties as best man for an old friend's wedding.

S6·E13 Core

Bad News

Jan 3, 2011 · 23 min

Afraid they will never get pregnant, Lily and Marshall decide to see a specialist. Robin begins her new job.

S6·E14 Core

Last Words

Jan 17, 2011 · 23 min

While on a trip to Minnesota, Ted and Barney try anything to make Marshall laugh. Marshall runs into an old nemesis from high school.

S6·E15 Core

Oh Honey

Feb 7, 2011 · 23 min

Barney gets emotional when he opens up to Honey about his life. Ted admits to having feelings for Zoey to the group.

S6·E16 Core

Desperation Day

Feb 14, 2011 · 23 min

Barney declares February 13th a holiday for desperate women. Marshall receives a Valentine's Day surprise from Lily. Zoey and Ted work on figuring out their relationship.

S6·E17 Core

Garbage Island

Feb 21, 2011 · 23 min

Marshall becomes obsessed with saving the environment after seeing a documentary on garbage. Ted runs into The Captain. Barney admits he has feelings for a woman.

S6·E18 Core

A Change of Heart

Feb 28, 2011 · 21 min

When Barney starts to have real feelings for Nora, he worries that something is wrong with his heart. Meanwhile, Robin starts dating a guy who acts a lot like a dog.

S6·E19 Core

Legendaddy

Mar 21, 2011 · 23 min

Barney meets his father and is shocked by the differences in their lives. The rest of the gang learn their "gaps"; knowledge they should have by now, but don't.

S6·E20 Core

The Exploding Meatball Sub

Apr 11, 2011 · 23 min

Lily and Barney react badly when Marshall finally quits his job at Goliath National Bank to take a volunteer position at an environmental organization. Meanwhile, Ted and Zoey's op

S6·E21 Core

Hopeless

Apr 18, 2011 · 23 min

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. Meanwhile, Robin runs into a guy she has a crus

S6·E22 Core

The Perfect Cocktail

May 2, 2011 · 23 min

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. Meanwhile,

S6·E23 Mytharc

Landmarks

May 9, 2011 · 23 min

When Ted is faced with an important decision that might affect his future with Zoey, the gang expresses their true feelings about her.

S6·E24 Mytharc

Challenge Accepted

May 16, 2011 · 23 min

Robin and Barney bond when they intervene in Ted's relationship, and Marshall and Lily watch a ticking clock as he fears that he soon will be the victim of food poisoning.

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