Rod Colbin who plays Mr. Franklin, Janet's boss in this episode, also plays Mr. Hadley, Cindy's boss, in episode 8 of season 5 ('Jack to the Rescue').
Laurie Lea Schaefer, who played Bobbi Willard, the efficiency expert, was Miss America 1972, representing Ohio.
When the glass breaks, all the pieces fall except one, in the next scene when Jack, Janet, and Terri are all standing in front of it, the last piece can be seen falling off.