Terrific interviews, clips, and insights into how and why late night has evolved. Unfortunately CNN in this, and in all its most recent documentaries that I've seen, thinks it's an asset to have nonstop loud, intrusive percussive music (if you can call it music) played on top of ANYONE who is being interviewed - and I mean everyone. The first time I heard it I thought I was watching an SNL parody of Investigative Reports. It is so predictable, so obnoxious, and such an assault on the ears that as soon as there was a scene that wasn't a historical clip, I turned off the sound and just read the subtitles. The music is actually ON TOP of the interviews, not under them. It is HUGELY distracting and unbalanced, with the effect of undermining the impact of the interviews rather than enhancing them - it's like a 5th grade kid's idea of how to make something dramatic that he got from playing video games.