direct broadcast satellite services has supplanted Stratovision as a permanent means of television delivery. The Stratovision concept continues to be used as a stop-gap measure where land-based transmitters are not possible and where large areas of territory need to be served with a television program. Popular culture The plot of the 1986 comedy film Riders of the Storm (also known as The American Way) is based on a similar concept, with a group of Vietnam veterans running a pirate television station ("S&M TV") from a B-29 that was constantly in flight. A similar system, using helicopters, is mentioned in the 1950 Robert A. Heinlein story "The Man Who Sold the Moon". References External links American inventions 1948 establishments in the United States Telecommunications-related introductions in the 1940s Television technology Propaganda in the United States Educational television