you mean a4e.... a4l is a fansub group that sucks...

and they dont have the slayers series... only the movies and ova...

i think anime-xtreme has all the tv series for slayers...

now El Hazard is pretty good... they have the first 2 OVAs which are very good... only thing missing would be the 2 second tv series ( i suggest you skip the first tv series since it sucks and it has about the same content as ova 1)