When Billy comes home from his date with Anita, he is singing "Juanita", a song sung often by Andy Griffith's costar, Don Knotts, as Barney Fife, in the Andy Griffith Show.
In syndication, this episode is divided into two parts.
When Ed Wingate is taking a bath, he is singing the song "Santa Lucia". This is an Easter egg nod to Gomer Pyle, played by Jim Nabors, on the Andy Griffith Show, who sang the same song in S4-20.