Re: What happened with Kes and Neelix?
I don't think it gave the date on YouTube. But I think the announcer was Dennis James (or maybe George Fenniman), and I think Moore was doing the dancing cigarettes during the mid-1950s.
Regarding the feline Neelix, apparently Barclay learned the name when he was working on the Pathfinder project.
Dr. Howard, Dr. Fine, Dr. Howard: For duty and humanity! --Men in Black (1934)