Daphne (Jane Leeves) pretends to be married to Niles (David Hyde Pierce) so she can avoid romantic entanglements with the layabout Clive (Scott Atkinson). Later, she realizes that Clive has become a captain of industry, and curses her decision to spurn him. At this point, Niles says, "Send in the clowns," a reference to a song of the same name by Stephen Sondheim that mirrors their situation. In that song, the singer realizes that someone who she had previously spurned was now an ideal match for her. Both in the song and in the episode, the desired match is unavailable, causing regret in the relationship seekers.
While pretending to be an astronaut, Martin (John Mahoney) declares that Buzz Aldrin's name has no special significance and is merely a result of a bee phobia. Though Martin is obviously lying, the nickname actually stems from Aldrin's childhood; the younger of his two older sisters frequently had trouble pronouncing "brother" and called him "buzzer", which was then shortened to "Buzz".
The scene two title card, "Next in the Repertory, 'Cosi Fan Tushy,'" is a reference to Mozart's comic opera, "Cosi Fan Tutte."
Included on the Fan Favorites: The Best of Frasier DVD.
Another episode where Frasier is more of a bystander and every one around him is acting crazy versus the other way around.