"Challenge Accepted!"@en . "This is the one hundredth and twenty-second entry of Barney's Blog, written by How I Met Your Mother main character Barney Stinson. It was retrieved from Barney's Blog at the CBS website here. This entry is in response to the episode Baby Talk."@en . . . . . . "This is the one hundredth and twenty-second entry of Barney's Blog, written by How I Met Your Mother main character Barney Stinson. It was retrieved from Barney's Blog at the CBS website here. This entry is in response to the episode Baby Talk."@en . . . . . "Barney's Blog: Challenge Accepted!"@en . . .