It’s husband vs. wife as trailblazing talk show host Phil Donahue takes on actress Marlo Thomas, best known for her sitcom “That Girl,” her children’s franchise “Free to Be… You and Me,” and playing Rachel’s mom on “Friends.” After four decades as a married couple, what surprises will they discover in this revealing game? Their book, “What Makes a Marriage Last,” featuring interviews with dozens of other celebrity couples is out now.


What do you admire most about Phil and Marlo?