The Riddle of the Sphinx (Inside No. 9) was characterised by Pemberton as a thriller in the style of Anthony Shaffer's 1970 play "Sleuth", while Shearsmith identified the episode as particularly theatrical, in the style of "Sleuth" and Ira Levin's 1978 play "Deathtrap". BBC executives, according to Shearsmith, saw the episode as a cross between "Sleuth" and Willy Russell's 1980 play "Educating Rita" that read as if it had been authored by psychopaths. The executive producer Jon Plowman suggested that the first half of the episode plays out like a radio play. The word-play and tea-drinking in this part of the episode are, in the writers' opinion, very
Ted Valentine took a class. He began refereeing at kids games, later moving up to junior high and high school games. In 1981, he attended a refereeing camp in Bristol, Connecticut run by NBA Hall of Fame member Dallas Shirley. While there, he poured out a cooler of ice water from a window onto sunbathers below the window. Shirley threw Valentine out of the camp for the stunt. A few months later, Shirley offered him a job as a referee. Valentine worked his first NCAA Division I basketball game in 1981 at the former Baptist College, now Charleston Southern University. He was