Every season (except the first one) has an episode where the narrator is somebody other than Meredith (this time is Alex). However, this is the first season with two of those episodes (Denny narrated "Stairway To Heaven").
In the previous episode, Dr Yang told Meredith that Dr Hunt went "Apocalypse Now" on her. The scene where Dr Hunt is looking up at the ceiling fan is eerily similar to the opening scene of Apocalypse Now.
It shows Izzie's birthday as 06/23/81. In a previous episode, it was assumed Izzie's birthday was January 8th.
Every episode of the show is named after a famous song. "Elevator Love Letter" is a song by Stars.
Molly Hagan and Tim Maculan play a brother and sister. They previously appeared in the same season 8 episode of Friends (1994) "The One with the Cooking Class" although they do not share a scene.