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Probe is a 1972 American made-for-television crime sci-fi thriller film produced as a pilot for a science fiction detective series, originally to have continued under that title. Created by Leslie Stevens, it starred Hugh O'Brian as Hugh Lockwood, one of a group of high-tech private eyes working for the organization "World Securities Corp." When picked up for series production, the title was changed to Search, because Probe was the name of an existing PBS series. The film originally aired February 21, 1972 on NBC.