This episode, Ted McGinley's first appearance as Jefferson D'Arcy, was taped exactly one year after David Garrison's (Steve Rhoades) last appearance as a regular cast member.
This episode was taped on December 14, 1990.
Although Ted McGinley joins the cast in this episode, his billing is relegated to the closing credits for the season. Producers weren't sure if his character would work, thus he was considered a guest star for his first season--which could allow the writers to write him out if need be. Fortunately for McGinley, his character worked and starting in season six, he would get billing in the opening credits.