One Day at a Time (1975 TV series)

One Day at a Time
Genre	Sitcom
Created by	Whitney Blake Allan Manings
Developed by	Norman Lear
Directed by	Herbert Kenwith (seasons 2–3) Alan Rafkin (seasons 3–8) Various (seasons 1 & 8–9)
Starring	Bonnie Franklin Mackenzie Phillips Richard Masur Valerie Bertinelli Pat Harrington Mary Louise Wilson Michael Lembeck Ron Rifkin Glenn Scarpelli Shelley Fabares Boyd Gaines Howard Hesseman Nanette Fabray
Theme music composer	Jeff Barry Nancy Barry
Opening theme	"This Is It" performed by Polly Cutter
Ending theme	"This Is It" (instrumental)
Composer	Ray Barry
Country of origin	United States
Original language	English
No. of seasons	9
No. of episodes	209 (list of episodes)
Production
Executive producers	Dick Bensfield Jack Elinson Perry Grant Mort Lachman Norman Lear Alan Rafkin
Producers	Dick Bensfield Patricia Fass Palmer Perry Grant Katherine Green Allan Manings Bud Wiser
Camera setup	Multi-camera setup, videotape
Running time	24 minutes
Production companies	T.A.T. Communications Company (seasons 1–7) Embassy Television (seasons 8–9)
Original release
Network	CBS
Release	December 16, 1975 (1975-12-16) – May 28, 1984 (1984-05-28)
Related
One Day at a Time (2017–2020)
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One Day at a Time is an American television sitcom that aired on CBS from December 16, 1975, to May 28, 1984. It starred Bonnie Franklin as a divorced mother raising two teenage daughters, played by Mackenzie Phillips and Valerie Bertinelli, set in Indianapolis.