At a riding stables Dr Marc is asked if he can ride a horse - His reply: "Only the merry-go-round type and that was many years ago" Maybe alluding to Dick Van Dyke's role in Mary Poppins (1964).
The "Psychic Harmony Center" is a thinly veiled reference to the Church of Scientology.
Sandy Hoyle refers to herself as a Beverly Hills call girl. This is the first direct reference to the show's setting being changed to L.A. from its previous location in Colorado.