Star Trek: The Original Series the 23rd century bearing a crew dedicated to exploring the Milky Way Galaxy. Roddenberry noted a number of influences on his idea, some of which includes A. E. van Vogt's tales of the spaceship "Space Beagle", Eric Frank Russell's "Marathon" series of stories, and the film "Forbidden Planet" (1956). Some have also drawn parallels with the television series "Rocky Jones, Space Ranger" (1954), a space opera which included many of the elements that were integral to "Star Trek"—the organization, crew relationships, missions, part of the bridge layout, and some technology. Roddenberry also drew heavily from C. S. Forester's Horatio Hornblower
Star Trek: The Original Series "The City on the Edge of Forever" was ranked #92 on "TV Guide"s 100 Greatest Episodes of All Time. In 2004 and 2007, "TV Guide" ranked "Star Trek" as the greatest cult show ever. In 2013, "TV Guide" ranked "Star Trek" #12 on their list of the 60 Greatest Shows of All Time. Episodes of the Original Series were among the first television series to be released on the VHS and laserdisc formats in North America in the 1980s, with all episodes eventually being released on both formats. With the advent of DVD in the mid-1990s, single DVDs featuring two