"As rated by imdb users".
Don't get me wrong, I like imdb, but I've seen their comment sections. I'd take anything coming from their users with a brick of salt.
My choices would be the original Cosmos, The Day The Universe Changed, Connections (#1), Soldiers: The History of Men In Battle. Honorable Mentions: War by Gwynne Dyer, and Planet Earth
Don't get me wrong, I like imdb, but I've seen their comment sections. I'd take anything coming from their users with a brick of salt.