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.
David Burtka
Burtka appeared in seven episodes of "How I Met Your Mother;" in all seven such installments, he acted out "Scooter," the former high school boyfriend of Lily (Alyson Hannigan), who still had not gotten over their breakup. Burtka made a cameo appearance, in "A Very Harold & Kumar 3D Christmas," as himself; in it, he also shared a scene with Neil Patrick Harris, in a part that was much like his character from "How I Met Your Mother."