If you know documentaries, then you probably know Ken Burns... and if you know Ken Burns, then you definitely know his iconic documentary on the American Civil War. Originally released back in 1990, this slow moving, but thorough film is considered the quintessential work on time period.
Now, Ken Burns: Civil War is well over twenty years old and many younger documentary lovers haven't seen this yet (you'll notice a current lack of a review on this site), and PBS knows this. So to remedy the issue, they are re-releasing the film starting this Sunday. Stretching through Thursday in two hour chunks, it might seem like quite the effort to sit through, but if you can find the time, I suggest tuning in.
Head on over to the PBS website to learn more.