Star Trek, Behind The Scenes

Roddenberry died on October 24, 1991 leaving Executive Producer Rick Berman in control of the franchise. TNG had the highest ratings of any of the Star Trek series and was the #1 syndicated show during the last few years of its original seven-season run.
In response to TNG's success, Paramount began production of a spin-off series Deep Space Nine, which was released in 1993. While never as popular as TNG, DS9 had solid ratings, and it also lasted seven seasons.
In January 1995, a few months after TNG ended, a fourth TV series, Voyager was released. Star Trek saturation reached a peak in the mid-1990s with DS9 and Voyager airing concurrently and three of the four TNG-based feature films being released in 1994, 1996 and 1998. Voyager was the flagship show of the new United Paramount Network (UPN) and thus, the first Star Trek series since the original that was shown on a major network. The show also ran for seven seasons until 2001, making it the longest running show in UPN's short history.
A new prequel TV series, Enterprise, set before the original series, was produced after Voyager ended. Enterprise did not enjoy the high ratings of its predecessors and by the series' third season, UPN threatened to cancel it. Fans launched a campaign reminiscent of the one that saved the third season of the Original Series. Paramount reacted by renewing Enterprise for a fourth season, but moving it to the "Friday night death slot". Like the Original Series, Enterprise did not fare well during this time slot. UPN announced the cancellation of Enterprise at the end of its fourth season, and its final episode aired on May 13, 2005. Fan groups, such as "Save Enterprise", again attempted to save the series and even announced a drive to raise $30 million to privately finance a fifth season of Enterprise. Though the effort garnered considerable press, the fan drive was unsuccessful in saving the series. The cancellation of Enterprise ended an eighteen-year production run of Star Trek programming on television. This, along with the poor box office performance in 2002 of the film Nemesis, cast an uncertain light upon the future of the Star Trek franchise in general.