The episode was recorded on July 5 and 6, 1989.
Frank Welker recorded alone on July 6, 1989.
Ray is revealed to be born in 1959 (making him 30-31 years old in this episode).
The news anchor mentions the date, April 10, 1959. This is one of the few times an exact date is known in an episode.
It is revealed that a Trap can be recharged.