what does (owned) mean?
To add to the searches: http://nzbindex.nl . It has been the best in my experience.
Other than that I usually just visit eztv torrents site (www.eztvefnet.org) to see what tv episodes have been released since their torrents are up before anything is uploaded to usenet. After which I check fst or nzbindex .
I used to grab most of my nzb's from www.nzbmatrix.com, but I haven't seen anything compare to fst .
I think i've DL something before with NZB.. and i'm pretty impressed about these sites. Hope it is faster than torrents.