don't feel bad. i would have recorded them all if i knew it was on! as it is, i have all the seasons (except one, i just finished that) in my netflix queue!
I noticed it was on but didn't watch it. I've seen all 4 seasons and have s1 on dvd and dvdrips of s2+3. Still because of what kind of show it is, I don't think I'll watch them again until 99% of the details have faded away.