'The Doctors' Preview Valerie Harper's Visit

Valerie Harper recently taped a segment with the members of The Doctors, and host Travis Stork tells ET that the TV star, who is suffering from terminal brain cancer, was in great spirits during their interview despite the circumstances.

Related: Stars React to Valerie Harper's Cancer Diagnosis

Calling her "resilient" and "upbeat," Stork said Harper seemed at peace knowing she has 3-6 months to live. Most inspiring, he shares, was her poignant outlook on life and death.

"I'm terminal, but so are you, and so is everyone here," Stork summarized of an especially inspiring message Harper delivered during the taping. "We're all dying. It's not about how you die; it's about how you live."

Related: My Husband Knew of My Cancer Before Me, Says Valerie Harper

The 73-year-old actress, who played Rhoda Morgenstern on The Mary Tyler Moore Show and its spin-off, revealed to People magazine earlier this week that she learned of the news on January 15 after a number of tests revealed she has leptomeningeal carcinomatosis.

Watch the video above for an exclusive sneak peek at Harper's Monday appearance on The Doctors and our interview with host Travis Stork. Check your local listings.