Long before Star Trek became synonymous with televised science fiction, a generation of space operas and anthology programs laid the groundwork for the genre?s cultural legitimacy. With Before Trek, J. P. Telotte reexamines the formative decades of science fiction television, the late 1940s through the mid-1960s, when both the medium and genre were defining themselves. At a moment when science fiction was often dismissed as juvenile escapism, early programs such as Captain Video, Space Patrol, Tales of Tomorrow, and Science Fiction Theatre worked to reshape audience and industry expectations, establishing the genre as a vehicle for serious storytelling. Tracing the evolution of the genre through The Twilight Zone, The Outer Limits, and ultimately Star Trek, Telotte reveals how television and science fiction developed in tandem, each helping to articulate the technological anxieties of the postwar era. These programs offered viewers new ways of seeing: approaches to social critique, political tension, and cultural change that conventional broadcasting often could not accommodate. By situating early televised science fiction within broader debates about media, modernity, and what Guy Debord termed the ?Society of the Spectacle,? Telotte reclaims a largely overlooked body of work and demonstrates its foundational role in shaping both contemporary television and the imaginative vocabulary of modern culture.