One of the most popular and influential shows in the history of television, for many viewers the original Star Trek (1966-9) defines good science fiction: however much it tries to be about the future, it cannot help but reflect the values of its own time, and Star Trek's vision was very much a product of creator Gene Roddenberry's 1960s liberal-humanist idealism. Conceived at the height of the Cold War and during the escalation of the Vietnam conflict, his was a radical vision of a world where national and racial differences have been put aside and all people work together. With a policy of non-intervention in the affairs of other civilisations, and violence only as a last resort, Star Trek embodied a lost dream, a fantasy of what America could have been had John F Kennedy not been assassinated in 1963. Captain James Tiberius Kirk (William Shatner) had the middle name of a Roman emperor, but otherwise shared his initials with the late president, and both were young, good-looking, womanising, charismatic popular heroes. If Kirk didn't uphold truth, justice and the American way from the White House, a big white starship was the next best thing. There was even a Russian, Mr Chekov (Walter Koenig), on the bridge, and the show delivered network TV's first inter-racial kiss between Kirk and Uhura (Nichelle Nichols). Even though there was a white American male in control, it was still all a bit much for 1960s mainstream TV, hence the voyages of the Starship Enterprise, boldly going on its five-year mission to explore strange new worlds, only lasted three seasons and 72 episodes before being cancelled in 1969, the year man first walked on the moon. While the once-ground-breaking special effects now look routine, and the then-radical politics have now become part of the politically correct global mainstream, Star Trek retains an enduring popularity due to its strong storytelling-the show employed such top science fiction writers as Robert Bloch, Harlan Elllison, Richard Matheson, Norman Spinrad and Theodore Sturgeon-and admirable characters. Spock (Leonard Nimoy), McCoy (DeForest Kelley) and Scotty (James Doohan), Sulu (George Takei), Kirk, Chekov and Uhura remain icons for a world short of real heroes: loyal to the end, honest and utterly dedicated, these were the friends and colleagues who week after week trusted each other with their lives. Devoid of cynicism and self-interest the crew of the USS Enterprise never, ever let anyone down, and ultimately that is a very big reason for Star Trek's enduring popularity. [+]