The narrator - Ted's older self in 2030 - doesn't make any comments during this episode until about 2/3 of the way. This includes the usual opening voice-over, "Kids..."
JoAnna Garcia became the 4th guest star who had also previously starred along Jason Segel in Freaks and Geeks.
Joanna Garcia and Josh Radnor also started in Not Another Teen Movie
The first name Lily suggests for her potential baby is Tara. In Buffy the Vampire Slayer, Tara is the name of Willow's (Alyson Hannigan) girlfriend.