Hulu

If you aren't familiar with Hulu.com, you should avail yourself of this opportunity to become acquainted. Hulu is a sponsored site that features legally viewable movies, TV shows, clips, etc.
Conglomerates like Fox and NBC (GE) allow their movies and shows to be featured on the site to attract advertisers. Youtube is going a similar route soon, but right now Hulu is the champ. Basically, you can watch your favorites Fox or NBC shows online (in HiDef even) with three or four short (no more than 30 secs) commercials spiced in.

For a while now the ability to stream TV shows on the net has been available, mostly illegally (since there are no commercial and no one makes money off them...greed is good, right?). To combat sites like THIS AWESOME ONE, the networks now almost universally offer their current seasons of entertainment on their individual websites. Sometimes you have to wait a week to view the new episodes after they air on TV, but most are up the morning after. Hulu consolidates a lot of show for you in one place, so you don't have to go from network site to network site. Plus they've got movies, and it is all free.

Anyway, that having been said I have embedded a widget in the sidebar that will update with Hulu's new holiday offerings as they become available. First up is the feature film Rudy (a rather lame classic, I know) and there will be more to come. I encourage you to keep and eye out for updates and check the site because they also have a pretty decent catalouge of full movies you can watch (good mix of old, new, classic and WTF?). I love the internets.