Star Trek: The Animated Series were added to the cast—claiming that Sulu and Uhura were of importance as they were proof of the ethnic diversity of the 23rd century and should not be recast. Nimoy also took this stand as a matter of principle, as he knew of the financial troubles many of his "Star Trek" co-stars were facing after cancellation of the series. Koenig was not forgotten, and later wrote an episode for the series, becoming the first "Star Trek" actor to write a "Star Trek" story. Koenig wrote "The Infinite Vulcan", which had plot elements from the original "Star Trek" episode "Space Seed"
Star Trek: The Original Series credits stated the starship's purpose: The series was produced from September 1966 to December 1967 by Norway Productions and Desilu Productions, and by Paramount Television from January 1968 to June 1969. "Star Trek" aired on NBC from September 8, 1966, to June 3, 1969, and was actually seen first on September 6, 1966, on Canada's CTV network. "Star Trek"s Nielsen ratings while on NBC were low, and the network canceled it after three seasons and 79 episodes. Several years later, the series became a bona fide hit in broadcast syndication, remaining so throughout the 1970s, achieving cult classic status and