Bruce (who picked up his gold in decathlon in 1976) is currently over in London covering the 2012 Olympics, but he also managed to find time to chat to us about Kourtney becoming a mum again, Kendall and Kylie being in the public eye, feeling "drained" after filming Keeping Up, Khloe's chances as the X Factor host and why he wants 30 grandchildren...
Are you having in fun in London with the Olympics?
"I'm having a wonderful time!"
You said recently that people don't really know you for your Olympic past any more - is it nice to get back to that?
"[laughs] That's actually very true! Yeah. I have kind of two lives, two careers. I come from the baby boomer generation, the older generation, and they have kind of grown up with me from the Olympics to all the commercials and things that I've done throughout the years - they know me. Because of the show - the primary audience is 18- to 42-year-old women, I mean, that's our big audience - it's like a whole different generation of people know you for different reasons.
"Which is fine for me, because I think parenting is certainly a lot more important than winning gold medals. That's the most important thing you do in your life - raise children and try to do the best job as a parent and give your kids the best shot in life to go out there into the big bad world. So being known for that is great."
Kourtney's obviously just become a mum again - are you missing the family?
"Actually, I am. I left on this trip on the 18th of July, oh! And I went to Germany for four days and I went to New York for four days and I came here for a little over two weeks, but I've been thinking about it - Saturday, the plane takes off, and I'm heading home!"
How are Kourtney and Penelope doing?
"Everybody's doing great. You know, Kourtney has turned out to be this fabulous little mum. I mean, she is so dedicated to her kids. We're so excited. My other daughter who's not on the show, she has two little girls, so this is my fourth grandchild. And I told my kids - a total of ten - I told my kids, 'Hey, my last Christmas Eve party before I check out - 30 grandchildren'. What do you think?"
I think you can probably manage that!
"That's averaging three a piece! You might get four, you might get two, but I think we can average three a piece per child. I think that's a reasonable goal to set. But what a great Christmas Eve party, hmm?"
Have you been watching this season of Keeping Up With The Kardashians? I know Kris said recently she's found it quite tough to watch.
"Well, I watch it... I mean, I've got to live this life. Watching it again is kind of fun. Our producer Farnaz [Farjam] is really the reason for the success of the show. Reality television is an artform just like doing a feature movie, just like doing a scripted sitcom, whatever it may be - it is an artform and we've been very blessed to have Farnaz with us right from day one.
"She's extremely experienced in this field. But also, Farnaz loves our family, loves every one of us, and I always feel confident no matter what happens that Farnaz is going to do it tastefully, she's going to do it right. Because she's kind of out there to build a show that has drama and this and that, but she's also out there to protect us. So I always feel very confident with her that she's going to do a good job, and she has - throughout the years, she has."
But there must be moments when you want to turn off the camera and have some privacy?
"Well, you know what - for me, I certainly get my breaks. This last season we just signed a new deal with E! for the next three years, and we went from half hour shows to one hour shows. That was an enormous amount of work. It was like four and a half months, cameras around all the time. It got draining near the end. My last day of shooting was the day I left for this trip, and I was saying, 'Okay, at this point I need a break'. But I get home on Saturday - I will be on the golf course on Sunday!"
Kendall and Kylie are growing up and are in the public eye a lot more now - they were on the cover of Seventeen recently. Are you worried about them being in the public eye at all?
"No, I'm not worried about it. I've been in the public eye since the Games 36 years ago. I know the game, I know how it's played. I watch these little girls like a hawk. I talk to them all the time about keeping this proper perspective. You've got to look at this as a business and it can be a very good business and you can build a very nice career here, but you have to keep it in proper perspective about what's going on and I watch them very closely.
"They have been great kids, good people, how they treat other people, the way they've dealt with it - I've been very impressed with them, because it's not easy. I mean, they literally grew up on the show. Season one I see a show, and I'm going, 'Oh my gosh, look at them - Kendall and Kylie have literally grown up'. The other girls are older and the only thing that really changed with them is their make-up artists are much better! They've gotten great make-up artists throughout the years. But the younger girls literally have grown up in front of the cameras and become very successful young women, and I'm very proud of them."
There have also been rumours lately about Khloe hosting The X Factor USA - do you think she'd be good at that?
"You know what? I heard the same rumour. It's been going around the house for a while. I don't know [if it's true]. I talked to Khloe a couple of times since I've been here [in London]. But I honestly think she would be a great host. She's got the personality, she's fun, people like her - yeah, I think she could be very good."
You mentioned that Keeping Up With The Kardashians got a big renewal recently - how long can the show last? Will it still be on when you're at your last Christmas Eve with your 30 grandchildren?
"Put it this way - Kylie's wedding, I'm done! Kylie's wedding, I'm done: 'Yeah, okay, we've done it, I've got them all married, they're all out of the house, I'm done!' I have no idea how long it's going to go. I would never have said it would have gone this long! But it just keeps going and you know, the one thing about the show is we have so many different personalities, so many different characters, there's a million different ways that the show can go. And so because of that it keeps people's interest, and so who knows how long it will go? I'll do it, because as long as my kids want to do it, I'll certainly do it."
Keeping Up With The Kardashians airs Sundays at 10pm on E! Entertainment Television in the UK and on Sundays at 9/8c on E! in the US.