Pioneers of Television

I just spent the nicest hour watching Pioneers of Television. The episode was about the birth of science fiction, interviewing past stars of Star Trek, Lost in Space, etc. and you got to find out what fascinating people Gene Roddenberry and Irwin Allen were. But what was really a surprise was the attitude of the show, relaxed, good-spirited, fun. There wasn't anything snarky or muckraking, no "so and so were doing drugs" and "so and so were sleeping together". Nothing juvenile. I felt a little like I'd gone back in time, watching a tribute show from the 70s.