This gets started on Nov 1st so I thought Id revive this thread. The webpage in the first post has some new trailers that look pretty decent. Having read the first half or so of the series I didnt see many major problems with the casting choices except for the wizard Zedd who just looks like a guy in his forties with white hair instead of a crazy old guy.
The channel it comes on is apparently somewhat erratic depending on your location since its a syndicated show(which on the plus side guarantees at least a full first season). Im my area is on CW which means it goes with lots of teen angst dramas and bad sitcoms so it will no doubt stick out like a sore thumb.