If you have one good series, you know, it's a blessing. Two good series is unusual. Three is a phenomenon, but right now, I'm working with these wonderful women on 'Hot in Cleveland,' and Valerie Bertinelli, and Wendy Malick and Jane Leeves are like, it's like the buddy-ship we had on 'Golden Girls' and 'Mary Tyler Moore.'

As the years went on, the audience has become very jaded. They've heard every joke, they've seen every story line, they know where you're going before you even start to get there. And that's a hard audience to keep interested.

I've worked with the Los Angeles Zoo for 45 years, and we have this magnificent photographer, Tad Motoyama. He takes these wonderful, wonderful animal pictures. All through the years he's given me copies of these pictures. Well, I have all these gorgeous ones, so I said, 'Tad, I want to do a book with your picture on one side.'

I'm blessed with good health for which I'm deeply grateful, so for that reason, I feel so good. Everybody else is far more excited about the 90 than I am.

When you start explaining why something's funny or finding a formula for it I think it loses some of its funniness.

I've worked with Morris Animal Foundation for more than 40 years now, and I'm so proud of all they've done to advance veterinary medicine for animals worldwide.

Why retire from something if you're loving it so much and enjoying it so much, and you're blessed with another group of people to work with like the gang on 'Hot in Cleveland?' Why would I think of retiring? What would I do with myself?