BRASILIA, July 5 : For decades, watching the World Cup in soccer-obsessed Brazil usually meant turning on the TV, but this year, for the first time, only half the games are being broadcast the usual way.YouTube-based CazeTV, founded by streamer Casimiro Miguel, is the only platform showing all 104 matches for free, turning Latin America's largest media market into a closely watched laboratory for live sports in the streaming era.As Brazil face Norway for a spot in the quarter-finals on Sunday, long-dominant Globo, the largest TV network in Latin America, remains the country's biggest World Cup broadcaster – reaching 86 per cent of the tournament's audience so far.But early ratings suggest the audience has fragmented as viewers split among CazeTV and other outlets. The streaming shift has g