I love that Nimoy called Shatner, Billy. I don't recall any of the other Star Trek actors calling WS, Billy. But, that may be because I never got to attend any of the conventions. 😢
This bumper is one I created from a Star Trek episode, The Cloud Minders beta tape that had no Leonard Nimoy or William Shatner voice over. The voice overs were recorded from syndicated 16mm Star Trek local broadcasts pre-video days on cassette tape circa 1970-1975. I merged them together in Adobe Premiere many years ago.