The founding of Home Box Office in the early 1970s was a harbinger of the innovations that transformed television as an industry and a technology in the decades that followed. HBO quickly became synonymous with subscription television and became the leading force in cable programming. Having interests in television, motion picture, and home video industries was crucial to its success. HBO diversified into original television and movie production, home video sales, and international distribution as these once-separate entertainment sectors began converging into a global entertainment industry in the mid-1980s. HBO has grown from a domestic movie channel to an international cable-and-satellite network with a presence in over seventy countries...