Warning: this product is definitely for watching after the kids go to bed. But you may have to start up your own swearing penny jar.
At the time Deadwood came out, it got a ton of publicity for the most uses of the F word imaginable. I would say they moderned it up a bit, because the swearing that made ladies swoon back in the 1800s probably wouldn't make us bat an eye today. What publicity the show didn't get was about how great the show was anyway, despite swearing a blue streak.
I tend to hate westerns, but Deadwood is visceral, colorful, and completely engaging. You can feel the mud and grit and taste the antifreeze they're drinking. I'll be the first to admit that for a long time after watching, it did have quite an adverse effect on my language, however.
The series ends rather abruptly, in part due to unexpected cancellation and in part because it would have been hard to put a final ending on history that did go on. If you watch the special features of the complete box set, you do get to see the creator of the show being a grump (mildly put) about the whole cancellation.
But all in all, it's a great show. It makes a great gift, and it's been making the rounds among my family members who all have given Deadwood two thumbs up. Buy it, ya ****suckers.