Miss Morgenstern of 70's TV

• Mary's best friend of old TV
• Mary's TV pal
• Sitcom featuring a voice-only doorman
• Sitcom's Morgenstern
• Show that was on before "Phyllis" in the mid-'70s
• ''Mary Tyler Moore Show'' spinoff
• Harper role
• Hit role for Valerie Harper
• Valerie Harper's TV role

Wikipedia Word definitions in Wikipedia
The fourth season of Rhoda aired on CBS from October 2, 1977 to April 23, 1978.