The final episode of the show gamered the biggest audience share among 18- to 49-year olds that the network has ever had. Based on a British series called Pop Idol, American Idol is another in a long list of shows that the United States has imported. In fact. many popular U.S. TV shows originated overseas. These include the quiz shows Who Wants to Be A Millionaire and The Weakest Link, both also from Britain Other examples include Survivor, imported from Sweden: Big Brother, based on a Dutch series of the same name, and TLC's Trading Spaces. base on the British series, Changing Rooms.