High Quality Content by WIKIPEDIA articles! Search is an American science fiction series that aired on Wednesday nights on NBC at 10 pm ET, from September 1972 to August 1973. It ran for 23 episodes, not including the two-hour pilot film originally titled Probe. When picked up for series production, the title had to be changed because Probe was the name of an existing PBS series. In the UK the series aired on BBC 1 under the title Search Control.