How do you play a bickering couple that have been married 65 years?  If your comedy duo, Jerry Stiller and Anne Meara, you draw on your own lengthy marriage for inspiration.  And that’s precisely what they did while starring on the new TV drama Mercy.

MERCY -- "The Last Thing I Said Was" Episode 106 -- Pictured: (l-r) Jaime Lee Kirchner as Sonia Jimenez, James Tupper as Dr. Sands, Anna Meara as Estelle Thalberg -- NBC Photo: Ali Goldstein.

Stiller and Meara play Joey and Estelle Thalberg who find themselves in the hospital after an argument causes Estelle to literally stroke out.

Stiller & Meara have been married over a half century and according to the comic team, it’s taken years of counseling to understand the secrets behind a successful marriage.

Just seeing them interact, however, makes it clear that a sense of humor is first on the list to keep a relationship strong.

Click onto video for Anne Meara and Jerry Stiller’s secrets for a long marriage.

Mercy airs tonight, 8:00 p.m. ET/PT on NBC.