They often appear on French TV shows to promote their popular science books. It's pretty sad because their book suck. I feel sorry for the persons that buy them.

Still, I find the Bogdanoff fascinating. I don't think they are imposters. They just have their very own confused way of understanding science. And I have to admit they're quite entertaining and likable. I used to watch them on TV when I was a kid more than 30 years ago. They hosted some kind of sci-fi show.