I just need to know if I'm correct or not about something. I know book titles are italized or sometimes underlined, but I'm not sure which is more proper. I also know that episodes of TV shows and chapter titles of books are put on quotation marks, but what do you do with the overall series title? For example, Star Trek has Star Trek Enterprise and Star Trek The Next Generation which would both be italized and their episode titles would be in quotation marks, but what about the general title of Star Trek?

Italicize (note spelling) it.