A lot of the photos that Jane shows at Frost's funeral are outtakes.
Jane's address (written on the postcard from Barry) is 294 Harbor View Drive, Apartment #3A, Charleston, MA 02129.
Many of the episode titles are also the names of songs; "Goodbye" and variations on it are the names of several different songs and albums by several different artists separately, including Paul McCartney/Mary Hopkin, Cream, the Spice Girls, Def Leppard, Avril Lavigne, Elton John, and Miley Cyrus.
Barry Livingston and Ernie Hudson were both born on December 17th, although in different years. As of December 17, 2021 both are still active in TV and movies.