Due to the male crew members being incapacitated, Uhura assumes command of the Enterprise from Scotty. Other instances occurred on the first and last adventures filmed in the original series: "The Cage", in which Number One took command after the abduction of Captain Christopher Pike, and "Turnabout Intruder", in which Dr. Janice Lester took over the body of Captain Kirk and assumed command. "The Lorelei Signal" and "The Infinite Vulcan", the latter written by Walter Koenig, are rare occurrences where Captain Kirk comes close to actually saying, "Beam me up, Scotty" (long erroneously believed to be a Star Trek catchphrase), when he commands "Beam us up, Scotty". Star Trek IV: The Voyage Home arguably comes closer to it by having Kirk say "Scotty, beam me up". An anti-pollution public service announcement was created for non-profit Keep America Beautiful featuring the ST: TAS characters and original cast voices. In the ad, the Enterprise encounters the "Rhombian Pollution Belt". The ad ran during Saturday morning network programming during the series' run. Canon issues At the end of the first season of Star Trek: The Next Generation, all licenses for Star Trek spin-off fiction were renegotiated, and the animated series was essentially "decanonized" by Gene Roddenberry's office. Writers of the novels, comics and role-playing games were prohibited from using concepts from the animated series in their works. Among the facts established within the animated series that were called into question by the "official canon" issue was its identification of Robert April as the first captain of the USS Enterprise in the episode "The Counter-Clock Incident". The Star Trek Chronology by production staffers Michael Okuda and Denise Okuda does not include the animated series, but does include certain events from "Yesteryear" and acknowledges Robert April as first captain of the Enterprise. The timeline in Voyages of the Imagination dates the events of the series to 2269–2270, assuming the events of the show represented the final part of Kirk's five-year mission, and using revised Alan Dean Foster stardates. In the updated October 1999 edition of their book: The Star Trek Encyclopedia: A Reference Guide to the Future, Michael and Denise Okuda state that: David Gerrold, who contributed two stories to TAS, stated in an interview his views on the canon issue: Writer-producer D. C. Fontana discussed the TAS Canon issue in 2007: References in other Star Trek series Since Roddenberry's death in 1991, and the