'One Day at a Time's' Bonnie Franklin battling pancreatic cancer

Mike Krumboltz
Yahoo! TV

Actress Bonnie Franklin, best known for her role on the hit sitcom "One Day at a Time," is battling pancreatic cancer.

A family spokesperson told Entertainment Tonight that Franklin, 68, is undergoing treatment and "continuing with her normal schedule."

Franklin's statement continued: "She and her family remain extremely positive and thank everyone for their support and concern. Respect for her privacy is greatly appreciated."

For nine seasons, Franklin played Ann Romano, a single mother to two daughters on “One Day at a Time.” In many ways, the 1975-84 CBS show was ahead of its time, dealing with hot-button issues like divorce, teen sex, suicide, and sexual harassment.

[Related: 'One Day a Time' Reunion Coming to 'Hot in Cleveland']

The show helped to launch the careers of Valerie Bertinelli and Mackenzie Phillips, who played Franklin's daughters. Phillips tweeted her support for Franklin: “Sending out love and sweet prayers to my 'mom'. The incomparable Bonnie Franklin." The show also propelled Pat Harrington Jr. into the spotlight. Harrington played the building's amorous and clueless super Dwayne Schneider, a fan favorite.

In recent years, Franklin has appeared in numerous stage productions across the country. She also reunited with Bertinelli on "Hot in Cleveland" last year and began playing a nun on the CBS soap "The Young and the Restless" just last month. She was married to producer Marvin Minoff until his death in 2009.