How I Met Your Mother
How I Met Your Mother (often abbreviated to HIMYM) is an American sitcom that originally aired on CBS from September 19, 2005, to March 31, 2014. The series follows the main character, Ted Mosby, and his group of friends in New York City's Manhattan. As a framing device, Ted, in the year 2030, recounts to his son and daughter the events that led him to meet their mother.
List of How I Met Your Mother characters
Barney's doppelgänger is the most significant; Lily and Marshall want a sign from "the universe" that they are ready to have children, and agree to start trying once they see Barney's double. In "Doppelgangers", Marshall meets a cab driver who he thinks is Barney's doppelgänger, but who turns out to be Barney in disguise. Lily then sees a pretzel vendor and thinks he is the double; in reality, the vendor looks nothing like Barney but they begin to try to have children as Marshall claims it means that Lily is subconsciously ready to have kids. Barney's real doppelgänger, Doctor John Stangel, is revealed in "Bad News". He is a fertility doctor, making Lily uncomfortable as she is convinced he is Barney in disguise.