Only the second time Stephanie March (Alex Cabot) and Diane Neal (Casey Novak) appear in the same episode since season 3 episode 10 Ridicule (2001) where Diane Neal was not ADA Casey Novak, but on the other side of the courtroom as Amelia Chase.
This is the first time in which a former ADA and the current ADA appear in the same episode, in this case Alexandra Cabot and Casey Novak. It happens four more times in the series between seasons ten and nineteen.
The two women in the opening scene, talking about a TV show, are referring to Desperate Housewives (2004-2012), S1.E2 - "Ah, But Underneath". The episode aired on October 10, 2004.
Alex Cabot's date of birth is May 31st, 1966 according to the information on the computer screen next to her picture.
ADA Alex Cabot (Stephanie March) says "Sometimes, when I get homesick I hum the Mister Softee song". Mister Softee is the largest franchiser of soft ice cream trucks in the United States, founded in 1956. Mister Softee has over 600 trucks and over 350 franchise dealers operating in 15 states. The ice cream trucks services the entire New York Area. The well-known jingle from the trucks is what Cabot is referring to.