"They were chatting away while they were dancing. I was very impressed," Donahue's wife Marlo Thomas said Ken Goff/Gett The late Phil Donahue and Princess Diana once shared a special moment together.

After 21 seasons, one of the kings of daytime is calling it quits. “Dr. Phil” — the long-running talk show that features Dr. Phil McGraw, 72, doling out advice to dueling couples, parents, teens, and ...