network affiliates pre-empted their own shows for the series pilot, "Encounter at Farpoint". One station predicted that "Star Trek promises to be one of the most successful programs of the season, network or syndicated". Special effects were by Industrial Light and Magic, a Division of Lucasfilm. The new show indeed performed well; the pilot's ratings were higher than those of many network programs, and ratings remained comparable to network shows by the end of the first season, despite the handicap of each station airing the show on a different day and time, often outside prime time. By the end of the first season, Paramount reportedly received $1 million for advertising per episode, more than the roughly $800,000 fee that networks typically paid for a one-hour show; by 1992, when the budget for each episode had risen to almost $2 million, the studio earned $90 million from advertising annually from first-run episodes, with each 30-second commercial selling for $115,000 to $150,000. The show had a 40% return on investment for Paramount, with $30 to $60 million in annual upfront net profit for first-run episodes and another $70 million for stripping rights for each of the about 100 episodes then available, so they did not need overseas sales to be successful. Seasons Star Trek: The Next Generation ran for 178 episodes, over seven seasons, from the fall of 1987 annually to the spring of 1994. At the end of that season, the cast switched over to production of the Star Trek film Generations which was released before the end of 1994. Season 1 (1987–1988) The Next Generation was shot on 35 mm film and the budget for each episode was $1.3 million, among the highest for a one-hour television drama. While the staff enjoyed the creative freedom gained by independence from a broadcast network's Standards and Practices department, the first season was marked by a "revolving door" of writers, with Gerrold, Fontana and others quitting after disputes with Roddenberry. Roddenberry "virtually rewrote" the first 15 episodes because of his "dogmatic" intention to depict human interaction "without drawing on the baser motives of greed, lust, and power". Writers found the show's "bible" constricting and ridiculous and could not deal with Roddenberry's ego and treatment of them. It stated, for example, that "regular characters all share a feeling of being part of a band of brothers and sisters. As in the original Star Trek,