This 1966 radio commercial announcing the debut of Star Trek on NBC sounds like a promo for an old-timey radio play.
At the edge of the universe, 400 men and women are probing the immeasurable blackness of space. Their leaders are an earthman with no fear and a stranger with no heart. Travel beyond our time and solar system into new galaxies, into worlds beyond your dreams. Star Trek — every week, in color, on the NBC television network.