One Day at a Time is an American situation comedy on the CBS network that aired from December 16, 1975 to May 28, 1984. It portrayed Ann Romano, a divorced mother, played by Bonnie Franklin, her two teenage daughters Julie and Barbara Cooper (Mackenzie Phillips, Valerie Bertinelli) and Schneider, their building superintendent (Pat Harrington).
The show was created by Whitney Blake and Allan Manings, a husband-and-wife writing duo who were both actors in the 1950s and 1960s. The show was based on Whitney Blake's own life as a single mother, raising her child, future actress Meredith Baxter. The show was developed by Norman Lear and later Embassy Television.
Like many shows developed by Lear, One Day at a Time was more of a comedy-drama, using its half-hour to tackle serious issues in life and relationships, particularly those related to second wave feminism. The show's nine years give it the second-longest tenure of any Lear-developed sitcom under its original name, after The Jeffersons. All in the Family and its continuation series Archie Bunker's Place had a combined 12-year run, but only nine of those years were under the show's original name).
Franklin's character, Ann Romano, is often incorrectly cited as network television's first female divorcee as a regular series character (Vivian Vance's character on The Lucy Show in the early 1960s had been divorced).
The show itself never won any major awards, but several actors did. Check imdb.com for the list.