How I Met Your Mother

How I Met Your Mother (2005 – 2014)

2005 • 9 seasons • Comedy • TV-14

On August 10, 2026

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8,700.0 Attention Score

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Episode 11 — The Mermaid Theory

Season 6 • How I Met Your Mother

Released: 2010-12-06 • Comedy

77%

User score

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, Marshall and Robin decide to spend alone time together, and Barney and Lily possibly have a fight.

Where to Stream Episode 11

Season 6 · Episode 11 · Streaming in USA

JustWatch

Episodes

Episode 1
Big Days
2010-09-20

Episode 2
Cleaning House
2010-09-27

Episode 3
Unfinished
2010-10-04

Episode 4
Subway Wars
2010-10-11

Episode 5
Architect of Destruction
2010-10-18

Episode 6
Baby Talk
2010-10-25

Episode 7
Canning Randy
2010-11-01

Episode 8
Natural History
2010-11-08

Episode 9
Glitter
2010-11-15

Episode 10
Blitzgiving
2010-11-22

Episode 11
The Mermaid Theory
2010-12-06

Episode 12
False Positive
2010-12-13

Episode 13
Bad News
2011-01-03

Episode 14
Last Words
2011-01-17

Episode 15
Oh Honey
2011-02-07

Episode 16
Desperation Day
2011-02-14

Episode 17
Garbage Island
2011-02-21

Episode 18
A Change of Heart
2011-02-28

Episode 19
Legendaddy
2011-03-21

Episode 20
The Exploding Meatball Sub
2011-04-11

Episode 21
Hopeless
2011-04-18

Episode 22
The Perfect Cocktail
2011-05-02

Episode 23
Landmarks
2011-05-09

Episode 24
Challenge Accepted
2011-05-16

Information

Episode air date	06.12.2010
Episode runtime	23 min
Episode rating	7.70
Genres	Comedy
TMDB series rating	8.1
IMDb series rating	8.3
Series status	Ended
Age rating	14+
Country	US

Trailer

Cast

Josh Radnor
Ted Mosby

Neil Patrick Harris

Neil Patrick Harris
Barney Stinson

Jason Segel
Marshall Eriksen

Alyson Hannigan

Alyson Hannigan
Lily Aldrin

Cobie Smulders
Robin Scherbatsky

Cristin Milioti

Cristin Milioti
Tracy McConnell

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