Scene where James Connolly (Patrick Duffy) and Bridget Connolly (Patty Duke) discuss caterers, James says to Bridget, "Why don't we use the caterer Neely O'Hara used for her wedding." Neely O'Hara was Patty Duke's character's name in "Valley of the Dolls" (1967).
When Theresa mentions the Montagues and the Capulets to a confused looking Angela, then clarifies by saying "Romeo & Juliet", Angela responds defiantly, "I saw the movie".