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Dimension X was the first SF anthology series to utilize published stories from established science fiction authors (2000 Plus drew its material from stories penned by its own staff writers), which gave the series an instant status of credibility to fans of the genre. It had an extremely low budget, but was the darling of the NBC staff, whose passion made the show perhaps the best SF radio anthology of the 50's. Despite their effort, the series only lasted a year and a half, and totaled a mere 46 episodes. It was later revived and became the more successful X Minus One. Unless otherwise noted, all episodes were done in half-hour format.