Well if you want something "legal", www.hulu.com is a pretty decent place to watch tv shows... the only thing is, you have to register to be able to watch them; don't worry, it's been months, and I haven't gotten any spam mail from them at all :]

download it here http://www.isceners.org/category/tv-shows/ free tv show download

www.demonoid.com or you can download from www.isohunt.com