More wave of the future stuff (and currently only limited to the United States, Damm) is Hulu. Hulu is basically a new service from News Corp (was an Aussie company once) and NBC that allows you to download and view 250 shows (eg "The Office" and "The Simpsons" and classics such as "Arrested Development" and "Buffy the Vampire Slayer." Hulu also provides 100 free, feature-length films, including "The Big Lebowski," "Me, Myself & Irene" and "Some Like It Hot," along with short video clips from 150 television series including "Saturday Night Live" and "In Living Color.") free and legal! Problem is that the system is smart and must track your IP address and if you aren't in the US then you can't view the videos (Damm).
You'll find an interesting article about what the service offers from the L.A. Times (which I read even though I am here in Australia). So if you are in the US I'd take a look because it doesn't sound really good and even allows you to nominate what style of commercial you want to view when you watch the free videos (they have to make money from it somehow).
Another example of what the future holds and how not so far away it is (unless of course you live in Australia!).