Why get satellite or cable anymore if you have hi-speed? I don't know. Two new services are running now, joost and graboid.
Joost just came out in beta and is awesome with a great interface and lots of things to watch. You can find all the shows you'd have a hard time finding on cable and would need a dvr to record if you have, like, a work or play life. You can also chat with others watching the channel, although nobody was when I was there, which is fine with me. There are some options for news too but they are quite limited and dated now, don't expect news flashes as of yet. The video quality is pretty good too. The best part is that it's free! This does mean that it has advertisements in between the shows, but it seems much better than normal tv.
Graboid has some subscription options for different download quotas.
Graboid will also let you save videos, but it's really just a newsgroup aggregator. I'm not sure how long it will be around since it let's you get movies that are in theaters, and I don't think it's paying the studios for that privilege.