The Mermaid Theory

7.8
/10
Ted goes on a boating trip with Zoey's husband, "The Captain." Meanwhile, Barney's "Mermaid Theory" prevents Marshal from having a nice dinner with Robin, and the narrator tries to recall the details of a fight between Lily and Barney.
S6.E11

How I Met Your Mother

The Mermaid Theory

season 6 episode 11

episode aired on december 2010

Episode rating

8.0
E1
8.2
E2
7.6
E3
8.5
E4
7.6
E5
7.6
E6
7.5
E7
8.0
E8
8.4
E9
9.0
E10
7.8
E11
8.1
E12
8.9
E13
8.6
E14
8.7
E15
7.9
E16
7.5
E17
8.1
E18
8.2
E19
7.5
E20
7.8
E21
7.7
E22
7.6
E23
8.4
E24

Cast of episode