Reference to previous episode: Robin's eating ribs whilst asleep is a reference to The Bracket (2008). When Ted says that Robin doesn't know how to lie, he asks her if she has ever eaten ribs while asleep. She answers "no", but she starts laughing.
Reference to previous episode: In this episode, we get to see Lily painting Marshall's nude painting, which appears for the first time in Columns (2007).
In a flashback, when Karen asks what the TV is, Marshall can be seen eating a bowl of fruit. Later, when Lily is asked why she painted Marshall naked, she says it's because he ate her bowl of fruit.
Reference to previous episode: When Barney remembers his last date with Wendy The Waitress, he mentions she wanted to kill him and runs away thinking she has a gun. This is a reference to The Platinum Rule (2007) where we learn that after sleeping with Wendy The Waitress and breaking up with her Barney starts thinking she wants to kill him.
Both Neil Patrick Harris and Cobie Smulders real life partners appears in this episode as Scooter and Gary Blauman.