Summer Olympic Games demand for tickets to all levels of each event, there was controversy when seats set aside for sponsors and National Delegations went unused in the early days. A system of reallocation was put in place so the empty seats were filled throughout the Games. Rio de Janeiro, Brazil hosted the 2016 Summer Olympics, becoming the third city in the Southern Hemisphere to host the Olympic Games after Melbourne, Australia, in 1956 and Sydney, Australia, in 2000, and the first South American city to host the Olympics. The preparation for these Games was overshadowed by controversies, including the instability of Brazil's
Winter Olympic Games when a competitor was killed in a pre-Olympic training run. Held in the French town of Grenoble, the 1968 Winter Olympics were the first Olympic Games to be broadcast in colour. There were 1,158 athletes from 37 nations competing in 35 events. French alpine ski racer Jean-Claude Killy became only the second person to win all the men's alpine skiing events. The organising committee sold television rights for US$2 million, which was more than twice the cost of the broadcast rights for the Innsbruck Games. Venues were spread over long distances requiring three athletes' villages. The organisers claimed that this