Gladys calls Sophia "Faccia Bella," which is Italian for "Beautiful face."
In a set-up for a joke, Rose tells the Girls that it is the 117th anniversary of the birth of Robert Frost. This was almost exactly right. The show aired on 19 January 1991, and Robert Frost, born in 1874, would have been 117 on 26 March 1991.
When Miles leaves his Robert Frost poetry book behind he asks Rose to read page 73 and think of him. The lines she reads out are "And when to the heart of man was it ever less than a treason to bow and accept the end of a love or of a season." This is a bit of a paraphrase of Frost's poem, "Reluctance" (from his book "A Boy's Will", 1913), the last stanza of which is, "Ah, when to the heart of man / Was it ever less than a treason / to go with the drift of things, / To yield with a grace to reason, / And bow and accept the end / Of a love or a season.