Prior to approximately 1948, there had been some attempts at television programming using the mechanical television process. One of the first series made specifically for television to have a sustained run was CBS's 1931–33 murder-mystery series "The Television Ghost", which ran for all 19 months that its flagship television station, then W2XAB, was on the air. The limits of mechanical television inherently meant that these productions were extremely primitive; "The Television Ghost", for example, consisted entirely of a 15-minute monologue of a single actor, with the only visual shot being the actor's head. By the time electronic television took over in the late 1930s, some more varied experimental programs, including live sportscasts and some game shows (such as the "CBS Television Quiz" and "Truth or Consequences"), were appearing; most television service was suspended beginning in 1942 because of World War II. The decade-long period of developing television techniques allowed broadcasting companies to be prepared when the war ended and the ensuing post-war prosperity allowed for increased consumer adoption of television sets.