Popular host of Spanish-language variety shows on Univision and Telemundo such as Sábado Gigante and Don Francisco Presenta.
As a teenager, he moved to New York to become a tailor, but was too infatuated with television.
He has hosted the Chilean version of Who Wants to Be a Millionaire? and Deal or No Deal.
His real name is Mario Luis Kreutzberger Blumenfeld. He married Teresa Muchnik Rosenblum in 1963 and together they had three children.