Along with The Article (1975), this is one of two episodes that Marcia Wallace (Carol Kester Bondurant) is missing from.
When the character of Janet Hoffman first appeared in Brutally Yours, Bob Hartley (1974), the character was played by actress Rose Gregorio, who was unavailable to reprise the role.
In this episode a set redesign is introduced to the lobby where Dr. Hartley's office is located. Between the two elevator doors there had previously been a single pair of up and down elevator buttons beneath a sign listing the names and suites of the medical specialists on the floor. Now there is a slender mail chute embedded in the wall with the sign positioned over it and two pairs of elevator buttons positioned near each elevator.