Good news for those of you outside the US! You can now purchase each episode of LotS after it airs through the iTunes store.
Read an article about it here.

You can download the premiere 2-hour episode of Legend of the Seeker in two parts. They are .flv files, so you’ll need a VLC player to play them. I know nothing about these files, so if you’re having trouble playing them, try a VLC support group. These files are watermarked, unfortunately.
LotS part 1
LotS part 2
I did a pretty terrible job recording it myself in sections, but I can upload mine in MP4 format if anyone is interested.