Originally, Carla dances to the song "Shout" by The Isley Brothers. On the current Hulu version, "Shout" had been replaced by "My Mind is Gone" by Lil' Ed and the Blue Imperials.
Dianne's statement about muffins in the morning is a reference to the napalm statement in Apocalypse Now (1979).
Sam's statement about not getting angry is a reference to the adage, "Don't get angry, get even." This explains Dianne's skittishness and paranoia afterwards.
The PBS station named (WBLD) is fictional. The real-life Boston PBS station, WGBH, is one of the most prominent Public TV stations, producing This Old House, The French Chef, and Masterpiece Theater among others.
The title is derived from the Alfred Hitchcock movie of the same name.