Who discovered the tv satellite?

Satellites for television weren't discovered. They were developed by scientists and engineers and launched into orbit using space rockets. The development of the Telstar satellite was taken on by companies in the US, Britain and France.

The first television satellite was launched in 1962 and was used for transatlantic television links between broadcasters.

Since then, hundreds of satellites have been launched into geo-stationary orbit to serve direct television broadcasts to homes.