But I was still hoping to be able to coach and teach.

I figured my body always would be able to repair itself. I think all of us believe that - until you begin to age and get hit with deteriorating joints.

I have done a series in the '60s, '70s and '80s.

I have twin boys, 12, and a daughter, 17.

I think I've got one more series in me, and I don't care what it is.

It's being in the right place at the right time and taking advantage of your opportunities.

I started out wanting to coach football.

Doing a series, every week you work with a new star.

I learn the whole script before I show up.

I've never minded my kids watching any of the series I did. That's important to me.

The Six Million Dollar Man was one thing, but I wanted to keep my own parts.

And about in the late '80s, I got kind of burned out a little bit.

I got kind of burned out, so I moved to Florida. I was down there for 10 or 12 years, raising children.

My fiancee and I recently eloped. We went on a fabulous honeymoon to Europe, and I was able to see and do everything I wanted without worrying about taking it easy.

I'm from Middlesboro, Ky., a little town on the Tennessee and Virginia border.

Acting is a tough business, and the percentage of people who make it is very low - it's about 1 percent.

I did a few more plays, and then I went to L.A., because I knew I could get a coaching job there.

I had no idea how big the show was at the time we were doing it because I was always working.

But I was still hoping to be able to coach and teach.

I've had disappointments and heartbreaks and setbacks and roles I didn't get, but something always came along that either made me better or was an even better role.

Then I got a bad back injury, and they thought I wasn't going to have any feeling in my legs.

So it's like starting over again, but I look forward to the challenge.

Knee replacement is serious stuff. And it actually could have made me worse.

I worked for the recreation and parks department for a year.

I thought I'd gone to heaven, because I grew up watching Roy and Gene Autry.

Even when I was young, playing college football, and I injured my knee, I bounced right back.

For 40 years, I put my body through a tremendous amount of work.

I just turned 66, and I'm starting to work again.

I've never seen a schedule where you just go in two hours almost every day of the week and then all day on one day. Then you shoot it at night with an audience and you're out of there.

There's a picture of the real Coach Gary Gaines in the book and he's sitting in the locker room after a game, and he just looks so much like Billy Bob, that we went to him.

I learned a great many things in the Marines that helped me as a football coach. The Marines train men hard and to do things the right way, just as a football team must train.

I was on Oprah's show recently talking about the people who impacted me the most. One was a teacher and one was my soccer coach. I didn't even go into my family, who had the most influence.

It's not just about a coach telling you what to do and just following it unthinkingly.

The accent got lost somewhere along the way. I'm a little embarrassed about it. When I arrived in LA I assumed I'd be able to put on the American accent. It proved difficult so I had six months working with a dialect coach and it's become a habit.

So you get two good hours on the field about every day, you get about an hour and a half in the meeting room and that's pretty much all you need to thoroughly coach your team.

My coach was a great politician, so he did most of the work. He was good.

Nobody gives a crap about hockey down here - nobody. I coach kids' hockey down here and you can start to see the disinterest in the game here with the kids.

But as my voice coach keeps saying, if we actually spoke the way they imagine the Elizabethan voice might have been, we wouldn't be able to understand it.

I'm fortunate now that I coach at Duke University and we've won a lot. I have some kids who haven't failed that much. But when they get to college, they're going to fail some time. That's a thing that I can help them the most with.

If I came in to recruit your son, I would tell you, your wife, and your son, that I will be the most demanding coach your son can play for.

When you coach as long as I did, you can't help but miss those Saturdays - dealing with the players, the game preparation, the challenges, the excitement.

But as a coach I wanted to keep things from being too complicated.

Working with my new coach has helped a lot. I've been a lot more focused and I'm doing all the little things in order to get faster. It's been a total lifestyle change really.

I am a coach on the outside of the establishment and that works.

My ambition in high school was to be a high school coach and teacher, and that's still what I do: teach.

I played from the time I was seven years old. My father was my first baseman coach. I had opportunities that I never really pursued - with some Miami teams and a few larger colleges, and then I ended up bailing and began cooking.

I wasn't naturally gifted in terms of size and speed; everything I did in hockey I worked for, and that's the way I'll be as a coach.

I coach a few guys and they work very, very hard, but in our day we did it because we just loved it.

I'm involved in some action scenes, so they'll train me for that. I'll be working with my acting coach to prepare for my character.