Here is a list of various websites where you can watch tv shows and movies via your computer. Go here for directions on how to hook your computer up to your tv so you can watch via your tv.
USA Networks (The first two episodes will be available online the day after they first air, with all remaining new episodes available 30 days after they first air.)
Fox Channel 131 - movies and tv shows with various links*
Project Free TV -movies and tv shows with various links* Amazon.com (free movies and tv shows to Prime Members)
*both of these have some of the new movies that are out at the theaters and new tv episodes generally the day after they air