The psychiatrist ask Dr. Craig about "dreaming of a silver spaceship flying in the yellow haze of the sun". Craig replies, "I was kneeling. I was young.". Those are lyrics from the Neil Yong song "After the Gold Rush.
Mr. Benville says that Wednesdays are lousy nights for television, and that he begins fading at 9:00 and is gone by 10:00. St. Elsewhere aired Wednesdays at 10:00 in 1987.
The title is from the novel You Can't Go Home Again by Thomas Wolfe published posthumously in 1940.