How I Met Your Mother: 6x18
A Change of Heart
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.
6 - 1Big Days Sep. 20, 2010
6 - 2Cleaning House Sep. 27, 2010
6 - 3Unfinished Oct. 04, 2010
6 - 4Subway Wars Oct. 11, 2010
6 - 5Architect of Destruction Oct. 18, 2010
6 - 6Baby Talk Oct. 25, 2010
6 - 7Canning Randy Nov. 01, 2010
6 - 8Natural History Nov. 08, 2010
6 - 9Glitter Nov. 15, 2010
6 - 10Blitzgiving Nov. 22, 2010
6 - 11The Mermaid Theory Dec. 06, 2010
6 - 12False Positive Dec. 13, 2010
6 - 13Bad News Jan. 03, 2011
6 - 14Last Words Jan. 17, 2011
6 - 15Oh Honey Feb. 07, 2011
6 - 16Desperation Day Feb. 14, 2011
6 - 17Garbage Island Feb. 21, 2011
6 - 18A Change of Heart Feb. 28, 2011
6 - 19Legendaddy Mar. 21, 2011
6 - 20The Exploding Meatball Sub Apr. 11, 2011
6 - 21Hopeless Apr. 18, 2011
6 - 22The Perfect Cocktail May. 02, 2011
6 - 23Landmarks May. 09, 2011
6 - 24Challenge Accepted May. 16, 2011