By that logic CW needs to give LUX a 3rd season...I mean it is doing better than Melrose Place did last year and MP got a full season and LUX is only getting a 13 before it ends it's second season.
I don't see Fringe getting another season.
Melrose didn't get a full season. It got I believe 18 episodes, full season is 22. The reason it got that is you need to remember that the CW was already working the season down two full hours, with Top Model having an encore and Beautiful Life (or whatever it was) failing miserable and getting canned after two or three episodes. This year, Lux is the only out and out failure (though Nikita and Hellcats are getting closer to that mark).