This episode marks Alyson Hannigan's 148th appearance as Lily Aldrin, exceeding her 147 episodes as Willow on Buffy/Angel.
First credited appearance of Becki Newton who plays Quinn.
Ted is revealed to be a Taurus while Barney is a Scorpio.
Ted says that he dated a girl who said her favorite band was Glee. Neil Patrick Harris was on an episode of Glee playing a former classmate of teacher Will Schuester.
Ted says he once knew a girl whose favorite band is Glee. Glee was written by Ian Brennan. Ian Brennan went to Prospect High School in Mount Prospect, Illinois with Jennifer Morrison (Zoey).