Three. March 4, 1967, November 18, 1967 and August 24, 1968.
Star Trek® actually made the cover of dozens of other TV magazines and various national publications during its initial network run. Find out how many, see the covers, and read what the news, entertainment writers and critics had to say about Star Trek® as it was being made and first broadcast. You'll also see samplings of the fan mail that came in to the Star Trek® offices during those years, as well as hundreds of other exclusive documents, such as memos between Gene Roddenberry and his staff, production schedules, budgets, and the Nielsen ratings for all of the "Classic 79." Read all about it in These Are the Voyages - TOS, Season One, coming from Jacobs/Brown Press in July 2013.
Watch for These are the Voyages — TOS, Seasons Two and Three, set for publication by Jacobs/Brown Press later in 2013.