 Uhuras line, "Sometimes I think if I hear the word frequency  again Ill cry", is drawn from an incident during filming. As early  as it was in the series, Nichelle Nichols (qv) was already tiring  of the repeated line, "Hailing frequency open, sir"; at one point  she turned to Leonard Nimoy (qv) and told him, "If I have to say  the word frequency one more time, Ill blow up this goddamn  panel."