At the wine club, Martin (John Mahoney) tells Frasier (Kelsey Grammer) and Niles (David Hyde Pierce), "Now, if you don't mind, I've got a big plate of Gewurzplatzchen waiting for me at home with my name on it." Gewurzplatzchen are German spice cookies.
The title is a play on an old proverb: "Gone, but not forgotten."
Charles Cioffi plays a character named Endicott. He also played a character named Senator Endicott on two episodes of the television show "St. Elsewhere."