Kirk Alyn, an agile dancer, began appearing in Saturday serials in 1948, letting his voice drop an octave each time he reached for his necktie and declared, "This looks like a job for Superman!"Which is not to say that Alyn was the first to use "up, up and away!" as Superman (it seems likely that it would have originated in radio, per dersin's link, but I don't have proof of that), just evidence that it was said by Superman.
When Alyn lifted his arms and cried, "Up, up, and away!" he would be replaced by an animated cartoon figure of Superman in flight.
Superman.
posted by dersins at 2:25 AM on August 19, 2007