According to information on certain internet links, they were testing bouncing lasers (at first) off the inner surface of the earth's firmament, and discovered that such a laser could be bounced' off at different angles depending upon the position of receptors positioned at different parts of the earth! Hence, why satellite dishes all over the world were introduced to help promote the myth that the customers were receiving signals from imaginary satellites! But, there are no satellites, the signals get broadcast and transmitted via this technology, and which also makes use of strategically located and positioned radio masts and underground (under water) cables!!!