This episode is the last to mention Chrissy Snow. Throughout the remainder of the series, no mention of Chrissy would be ever be made.
Suzanne Somers does not appear in this episode.
Audra Lindley and Norman Fell make a special guest appearance reprising their Three's Company / The Roper's roles as Helen and Stanley Roper. This episode would also be the last to feature them in the series and the last to make reference to them.
Tag: All is good with the Ropers, so the kids throw them an anniversary party!
(about Cindy )
Janet: Oh, this is Cindy Snow, Chrissy's cousin.
(to Stanley, about Cindy)
Stanley: Who's she?
Jack: Oh that's Chrissy's cousin, whose staying here while Chr...
Stanley: Who cares?
It is fair to mention this goof for this episode as it is the last to mention Chrissy Snow and the Roper's. Do Jack and Janet and cousin Cindy go through a case of amnesia after this episode? No one ever refers to Chrissy again, making a close, indirect mention in "Extra, Extra" (but not even saying a name). Cousin Cindy doesn't bring her up and her best friends seem to have forgotten about her. Did Jack, Janet and Chrissy have a falling out? Also, the Roper's are never referred to again. I guess Jack and Janet don't like to think about their old friends.