I was a late Carlin convert. For anyone on the fence, give it a shot - his material in Blueprint is rarely over the top, it never feels unduly expanded, etc. He shows it respect, but you can feel his passion for the subject and he makes every detail interesting.
I also enjoyed Celtic Holocaust, which is a more approachable length.
He does get long winded at times, but it’s worth sticking with it. There’s a lot of detail in there that is often lost in <hour long documentaries, including a fair bit of comparison to modern times. The first episode, where he discusses the importance of Gavrilo Princip and how his actions depends on the eye of the beholder is particularly enlightening. There are some comparisons to the Kennedy assasination which can feel like a stretch at times, but definitely thought provoking.
I think if you come into the series believing you’ll hear a straight up factual recount of events without bias, you’ll be disappointed. It’s more of a discussion (albeit in monologue form) than documentary. That said I find he treads the topic very carefully, trying hard to present the case in different lights – I think this might be why it’s a bit long winded at times. At the same time, this is what gives it color in my opinion. He’s also a very good narrator I feel.
I wouldn’t base a history paper off of these episodes, but I’d be comfortable in using them as a starting point for deeper dives.
I also enjoyed Celtic Holocaust, which is a more approachable length.