The voice actors were recorded on July 14, 1986.
This episode reveals Winston's interest in the mystery genre. This fact is also explored again in "Elementary My Dear Winston".
Ray eats a slimed pizza. A similar thing happens in "The Devil to Pay".
It was written in the script that the Ghostbusters would be eating pizza but the animators in Korea didn't know what it was at first and it looked like a three layer Boston cream pie.
Agatha Grisley is a reference to well-known mystery writer Agatha Christie, and the Agatha Grisley book Winston mentions, "Murder on the Hoboken Express," is a reference to "Murder on the Orient Express," written by Agatha Christie.