- First epsode aired: 9th September, 1974
- Last epsode aired: 9th December, 1978
- Original Network: CBS
- Created by: James L. Brooks and Allan Burns
- Developed by: David Davis, Lorenzo Music
- Seasons: 5
- Number of epsodes: 110 (4 unaired)
- Genre (accoring to Wikipedia): Sitcom
- Country of Origin: The United States
- Original Language: English
- Main Cast: Valerie Harper, Julie Kavner, Nancy Walker, David Groh
- Production Locations: CBS Studio Center Studio City, California
- Run time: 25 - 26 minutes
- Production companies: MTM Enterprises
- Distributor: Victory Television (1979 - 1980), 20th Television
- Audio format: Monaural
- Original release date: 9th September, 1974 - 9th December, 1978
- Preceeded by: The Mary Tyler Moore Show
- Followed By: Carlton Your Doorman, Mary and Rhoda
- Related Shows: Phyllis, Lou Grant
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