 While performing as Carlos, Alvarez was prompted by Randi using sophisticated radio equipment.According to the "60 Minutes" program on the Carlos hoax, "it was claimed that Alvarez would not have had the audience he did at the Opera House (and the potential sales therefrom) had the media coverage been more aggressive (and factual)", though an analysis by "The Skeptic"'s Tim Mendham concluded that, while the media coverage of Alvarez's appearances was not credulous, the hoax "at least showed that they could benefit by being a touch more sceptical".The hoax was exposed on "60 Minutes Australia"; "Carlos" and Randi explained how they had pulled it off.