1. Film serial (1953). Columbia. Directed by Spencer G Bennet, starring Judd Holdren, Vivian Mason, Ted Thorpe, Forrest Taylor, Michael Fox. Script George H Plympton, Arthur Hoerl. This 15-part children's series – Hollywood's last sf serial – featured an investigative reporter, a Mad Scientist, a Robot and an attempted alien Invasion of Earth. Individual "chapters" had titles like "Blasted by the Thermic Disintegrator" and "Snared by the Prysmic Catapult".
2. BBC Radio Children's Hour serialization (1953).
3. UK tv serial (1954). BBC TV. Produced by Kevin Sheldon, starring Peter Kerr, Jack Stewart, Mary Law. Script by Angus MacVicar, based on his The Lost Planet (1953). Six 25-minute episodes. Black and white. This was one of the first sf-related BBC TV serials for children; previously it had been a very popular Radio serial. An atomic-powered spacecraft takes a group, including one child, to the lost planet of Hesikos. A sequel, Return to the Lost Planet, based on MacVicar's Return to the Lost Planet (1954), was produced the following year. [PN/JB]
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