Agreed. I love the way Friedkin made no concessions to prime time television and treated that massacre scene like it was a scene from The French Connection. Lol!
I own the first and second seasons, but not the third. The third wasn't part of the original series -- it was filmed to fill out a syndication package. Nevertheless, there's some good eps in the third, like The Cold Equations. A lot of the eps of all three seasons are posted on YouTube, along with Nightcrawlers.