How do you find people who have a compulsive lying problem for an illuminating television documentary?

It depends where you are in the world, but to be honest with you most compulsive liars have a problem admitting they have a problem not to mention going on a television show, so you would really need to find people who live with compulsive liars who can persuade them to go on a tv show. I live with a compulsive liar, and they do not like to admit that they lie. Do you try and point out when they lie? why do you think that they lie? I was speaking to a therapist who said that it is a very difficult thing to a) recongise and b) change.