These interviews were taped just prior to Star Trek's NBC premiere in September 1966 on the set of the episode "What Are Little Girls Made Of?" (The 9th episode produced and the 7th episode to be broadcast, which had an Original Airdate of October 20, 1966.) The interviewer is Harry Martin from KCRA Channel 3 in Sacramento, CA.
While the video quality is not strong; these clips are historic moments with the 2 main stars of The Original Series discussing a show that has yet to be seen by the public.