How I Met Your Mother · SEASON 6
The Mermaid Theory
Episode 11 · 2010-12-06

- Comedy
Episode overview
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.
23 minutes
Season 6 episodes
1. Big Days2010-09-20
2. Cleaning House2010-09-27
3. Unfinished2010-10-04
4. Subway Wars2010-10-11
5. Architect of Destruction2010-10-18
6. Baby Talk2010-10-25
7. Canning Randy2010-11-01
8. Natural History2010-11-08
9. Glitter2010-11-15
10. Blitzgiving2010-11-22
11. The Mermaid Theory2010-12-06
12. False Positive2010-12-13
13. Bad News2011-01-03
14. Last Words2011-01-17
15. Oh Honey2011-02-07
16. Desperation Day2011-02-14
17. Garbage Island2011-02-21
18. A Change of Heart2011-02-28
19. Legendaddy2011-03-21
20. The Exploding Meatball Sub2011-04-11
21. Hopeless2011-04-18
22. The Perfect Cocktail2011-05-02
23. Landmarks2011-05-09
24. Challenge Accepted2011-05-16