<Tr> <Th> Audio format </Th> <Td> Monaural </Td> </Tr> <Tr> <Th> Original release </Th> <Td> December 16, 1975 (1975 - 12 - 16)--May 28, 1984 (1984 - 05 - 28) </Td> </Tr> <P> One Day at a Time is an American sitcom that aired on CBS from December 16, 1975, until May 28, 1984 . It starred Bonnie Franklin as a divorced mother raising two teenaged daughters in Indianapolis . The daughters were played by Mackenzie Phillips and Valerie Bertinelli . </P> <P> The series was created by Whitney Blake and Allan Manings, a husband - and - wife writing duo who were both actors in the 1950s and 1960s . The series was based on Whitney Blake's own life as a single mother, raising her three children (including future actress Meredith Baxter) after her divorce from her first husband . </P>

Who played the mother in one day at a time