Bonnie Franklin Cancer Battle: Valerie Bertinelli Helping Her 'One Day at a Time' Mom

Ann and Barbara together again

'One Day at a Time' Co-Star Supports Bonnie Franklin

It always appeared that the One Day at a Time co-stars were a close-knit group in real life.

Now, years after the series ended in 1984, Bonnie Franklin, who played the mom, Ann Romano, is facing a cancer diagnosis -- and she has TV daughter Valerie Bertinelli by her side.

Franklin, 68, who was recently diagnosed with pancreatic cancer, can count on her television offspring to be in her corner.

Read: Valerie Bertinelli Photos

According to the National Enquirer, a source tells the mag that Franklin and Bertinelli have remained close over the years, noting, "Valerie has always been there for Bonnie, but never more so than now. She's even cooked hearty Italian dishes for Bonnie and delivered them personally. Bonnie was so grateful!"

At the time of Franklin's diagnosis in September, her rep released a statement that read: "She and her family remain extremely positive and thank everyone for their support and concern."

Read: Mackenzie Phillips Says Bonnie Franklin Better Than Her Real Mom

Her other TV daughter, Mackenzie Phillips, tweeted her support after the news broke, writing, "Sending out love and sweet prayers to my 'mom,' the incomparable Bonnie Franklin."

In this video clip, Bertinelli talks about reuniting with Franklin on the series Hot in Cleveland.