On Fat Tuesday (Mardi Gras) in February 2010 I received a call from Danny Kelly from BBC Radio Birminghan. I was interviewed live on the phone for about 4 minutes. Listen to the interview about Rio de Janeiro Carnival: Rio Tour Guide Madson interviewed live on BBC Radio – Birmingham, UK
In October 2007 I walked National Geographic writer Jason Bermingham through Copacabana. Our stroll later turned out to be a suggested walking tour on National Geographic website as shown below.
In December 2007 I personally guided Lonely Planet writer Regis St.Louis in Rio de Janeiro. A few weeks later he emailed me informing that I would be listed on the Aug 2008 Rio de Janeiro edition. In January 2010 we met again and I gave him an update on places listed on the book. See a comment about me on the scanned page extracted from Lonely Planet.
See below one of the many reviews on Trip Advisor 
Petit Futé is one of the top three travel guides in France. I have also been listed on the 2008 edition as seen below.
Thalassa is probably the oldest and most watched TV broadcast in the French-speaking world. I have served as the tour guide for the television film crew and reporter and has been interviewed.
Watch this portion of documentary about Rio de Janeiro where you can see me starring on national French TV France 3 (English subtitles written by myself).