When I started my first script, I soon realized that there's a good reason people pay for screenwriting school. I had a formatting question every other line, no clue what structure to follow, etc. If it weren't for some of the sites listed in the sidebar, I would have never finished. So definitely check them out. John August's and Alex Epstein's blogs are especially helpful for formatting and general newbie questions.
Anyways, I hope this site can be helpful too. Or at the very least, steer you towards good television.