Probe was a 2 hour TV pilot movie created by Leslie Stevens that first aired on February 21, 1972 on NBC. Probe was the pilot for the science fiction detective series Search starring Hugh O'Brian as Hugh Lockwood, a high-tech private eye designated “Probe One”. When picked up for series production, the title had to be changed because Probe was the name of an existing PBS series. Probes were agents for a group known as “World Securities.” They were outfitted with various electronic implants, and each was equipped with button-sized "scanner" that contained a micro-miniaturized video camera, microphone and transmitter, which connected him with a team of technicians and experts who constantly monitored his surroundings, actions and vital signs, and were able to supply the Probe with encyclopedic information on any subject. Lockwood was an American astronaut now working as a Probe for World Securities. In the pilot, Lockwood sets out for Europe; his assignment is to track down a multi-million-pound stash of gemstones that were amassed by Hermann Goering during World War II. The pilot has been released as a publish-on-demand DVD-R, effective May, 2011.