This is the 4th episode of the series to be centered on one character. The previous ones were "The Best Thing That Ever Could Have Happened" (Eli Scruggs), "Look Into Their Eyes and You See What They Know" (Edie Britt), and "Lovely" (Robin Gallagher).
The title of this episode "Epiphany", is taken from a song of the same name in the Stephen Sondheim musical, 'Sweeney Todd: The Demon Barber of Fleet Street' (1979).