"Amazing Race" host Phil Keoghan is at work with his wife, Louise Rodrigues, editing footage from a cross-country bicycle race for Multiple Sclerosis into a full-length documentary. He made that trip himself -- in 42 days earlier this year -- and also took part in this month's MS bike ride that generated millions of dollars for MS research.

Phil, who has become so close to the charity that he will be making a special appearance and delivering a speech at the National MS Society November Leadership Meeting in Chicago, points out that "the rides are humbling. People run out to greet you. A woman with MS sat by the side of the road in her wheelchair clapping us on and saying she wished she could be with us. There's some wonderful footage there that will introduce a lot of people to what's a really wonderful charity."

Phil has no personal ties with MS -- except for a relative in New Zealand he's never met. He makes the point, "I'm asked to be active in so many causes, and it's hard to single any out. There are so many worthwhile challenges in the world, and you can't give to everyone."

He says he hopes the film he's making of the MS bike trip will include his meeting with his father's cousin, the New Zealand relative he's never met.

"He's a television host confined to a wheelchair," says Phil. "And, I hope to get to New Zealand to meet him before we complete the film."