Yep. NBC canceled it.
On one hand, what a shame. The first season was just terrific. Epic.
But after that, wow, they did pretty much everything wrong. The show went from almost 15 million viewers an episode on season one, to under 5 million just 4 short years later. Talk about an implosion.
I remember I could only watch a few episodes of season 2, it sucked so much. Which was astounding, considering how great season 1 was. I ended up watching all of this last season, and I thought they were getting back to the things that made it a good show. But I guess by then, the momentum had been lost.
Sad. I really liked that show.
Me too, I pretty much stopped watching it mid season 2, loved season 1 to bits.
edit: wish they'd stop smallville aswell. they're wrecking the superman universe.