Which satellite was used to assist in broadcasting the 1964 Tokyo Olympics on multiple continents?

The satellite that was used to assist in broadcasting the 1964 Tokyo Olympics on multiple continents is Syncom 3. Launched in August 1964, Syncom 3 was the first geostationary satellite, enabling it to remain fixed over one location on the Earth’s surface. This positional stability allowed for continuous communication links, which was crucial for the broadcasting of the Olympics to audiences in the United States and other regions.

Syncom 3 played a prominent role in the success of live television coverage of the Olympics, marking a significant advancement in satellite communication technology. By allowing broadcasts to be transmitted in real time across vast distances, Syncom 3 transformed how events could reach a global audience, paving the way for future satellite-driven broadcasts.

While the other options listed also represent significant developments in satellite technology and communications, they were not involved in the Tokyo Olympics broadcasting. For example, Telstar was used primarily for telecommunications and television broadcasts but came into service after the 1964 Olympics. Echo 1 was a passive communications satellite, reflecting signals rather than actively transmitting them, and OSCAR (Orbiting Satellite Carrying Amateur Radio) was focused on amateur radio communications and did not facilitate commercial broadcasts like the Olympics.