Harper, 73, is best known for her portrayal of
Rhoda Morgenstern on "The Mary Tyler Moore Show" and its spin-off, "Rhoda." She also headlined the sitcom "Valerie."
The actress told People magazine doctors gave her the dire diagnosis Jan. 15, but she is trying to maintain a positive attitude.
"I don't think of dying," she said. "I think of being here now."
'True Detective' adds Kelly Reilly