https://www.metv.com/stories/the-moment-deforest-kelley-knew-star-trek-was-a-phenomenon

Bones recalls when he realized Star Trek was huge.

Here's the moment DeForest Kelley realized Star Trek was out of this world (https://www.metv.com/stories/heres-the-moment-deforest-kelley-realized-star-trek-was-out-of-this-world)

A star was born… and DeForest Kelley knew it!