David Frost between Frost and Henry Kissinger, President Nixon's national security advisor and secretary of state, Frost urged Kissinger to call chess Grandmaster Bobby Fischer and urge him to compete in that year's World Chess Championship. During this call, Frost revealed that he was working on a novel. Frost interviewed heavyweight boxer Muhammad Ali in 1974 at his training camp in Deer Lake, Pennsylvania before "The Rumble in the Jungle" with George Foreman. Ali remarked, "Listen David, when I meet this man, if you think the world was surprised when Nixon resigned, wait till I whip Foreman's behind." In 1977, the Nixon
The Rumble in the Jungle match, so I had to let it go." Foreman eventually concluded, in 2003: "[Ali is] the greatest man I've ever known. Not greatest boxer that's too small for him. He had a gift. He's not pretty he's beautiful. Everything America should be, Muhammad Ali is." The fight was broadcast live pay-per-view on closed-circuit television, also known as theatre television, to venues across the world. The fight had a record estimated 50million viewers on closed-circuit television worldwide, grossing an estimated $100million (inflation-adjusted $million) in revenue. In the United States, the fight had an estimated 3million closed-circuit viewers in 400venues, with tickets