Oh oops, my bad!
Umm im not too sure actually, i know Baulko, HGHS, Sydney Girls and Parra Marist run classes with it. And you guys
But i think maybe with small classes in a bunch of other schools that i dont know about there'd be more that 100 =S nevertheless, it isnt a popular elective at all...which can be a good thing haha!
Also id reckon its the hardest Ext English elective they offer, so if you can do well in it then you're set! But thats probably another reason why its not so popular.
Our teacher is super good with it as well! Id think though that any teacher that wanted to teach TD would have to have a passion for the elective, so they'd all be good.