The series' original pilot, "The Cage," featured Jeffrey Hunter as U.S.S. Enterprise captain Christopher Pike--a variation of the role that would eventually catapult William Shatner to TV stardom. Filmed in 1964, the pilot was rejected by NBC the following year, but the network made a rare decision to order a second pilot. "Where No Man Has Gone Before" was filmed in 1965, and only one character from the previous pilot remained--a pointy-eared alien named Spock (played by Leonard Nimoy), whom Roddenberry had retained despite network disapproval. The second pilot was accepted, and production on Star Trek began in earnest with the filming of its first regular episode, "The Corbomite Maneuver."

Never a ratings success despite a growing population of devoted fans, Star Trek was canceled after its second season, prompting a letter-writing campaign that resulted in the series' third-season renewal. It was a mixed blessing, since Roddenberry had departed as producer to protest the network's neglect, and Star Trek's third season contained most of the series' weakest episodes. And yet, the show continued to "to explore strange new worlds…to seek out new life and new civilizations…to boldly go where no man [a phrase later amended to "no one"] has gone before."

There were milestones along the way. The first interracial kiss on network primetime TV (between Shatner and series co-star Nichelle Nichols) furthered a richly positive and expansive view of a better, nobler future for humankind. The series offered a timelessly appealing balance of humor, imagination, and character depth. And at least one episode (Harlan Ellison's "The City on the Edge of Forever") ranks among the finest science fiction stories in any popular medium. Beloved by long-time fans in spite of its cheesy sets and costumes, and the now-dated trappings of late-1960s American culture, "classic Trek" has aged remarkably well, and its sense of adventure and idealism continues to live long and prosper. --Jeff Shannon

The three 2004 DVD sets collect all 79 episodes of the show, including "The Cage" in both a restored color version and the original, never-aired version that alternates between color and black and white. Each set is supplemented by over an hour of featurettes incorporating new and old interviews with Shatner, Nimoy, other cast members, and producers, and there's also some vintage footage of Gene Roddenberry. Accompanying the 20-minute seasonal recaps ("To Boldly Go...") are a number of interesting featurettes: "The Birth of a Timeless Legacy" examines the two pilot episodes and the development of the crew; "Sci-Fi Visionaries" discusses the series' great science fiction writers; Nimoy debunks various rumors in "Reflections of Spock"; "Kirk, Spock & Bones: The Great Trio" focuses on the interplay among Kirk, Spock, and Dr. McCoy (DeForest Kelley); and, in what is probably his last Star Trek appearance, James Doohan (Scotty), slowed by Alzheimer's but still with a twinkle in his eye, recalls his voiceover roles and his favorite episodes. As they've done for many of the feature-film special editions, Michael Okuda and Denise Okuda provide a pop-up text commentary on four of the episodes filled with history, trivia, and dry wit. It's the first commentary of any kind for a Star Trek TV show, but an audio commentary is still overdue. The technical specs are mostly the same as other Trek TV series--Dolby 5.1, English subtitles--but with the welcome addition of the episode trailers. The plastic cases are an attempt to replicate some of the fun packaging of the series' European DVD releases, but it's a bit clunky, and the paper sleeve around the disc case seems awkward and crude. Still, the sets are a vast improvement both in terms of shelf space and bonus features compared to the old two-episode discs, which were released before full-season boxed sets became the model for television DVDs. --David Horiuchi