Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Sorry, just dumping it back out there for the Forum Spy trackers to get a response...
 
CBS has their videos available on their website in HTML5. NBC... Well, with their greediness, don't expect to get them until the official Hulu app comes out, if even then.
 
Personally, I just use my Vista Media Center, record the shows and convert them to iPhone/iPad videos using DVRMSToolbox. Nice thing is I record them in HD, and get great quality. I can even stream on 3g or Wifw by copying the converted files over to dropbox, and can stream them from any computer, iPad, iPhone, etc.

Yes, it takes a bit to setup, but with some scripting, it's all automatic. DVRMSToolbox automatically copies to my dropbox drive on my windows PC, and my iPhone/iPad immediately has access. I can even download the video file from dropbox so I can watch when I'm not near wifi or 3g.
 
CBS offers full episodes of survivor if you go to cbs.com on the ipad, I think they offer more shows via the tv app. I don't think NBC was that interested.
 
Simple, ABC is owned by Disney whose biggest stockholder is Steve Jobs. NBC & CBS not so much.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.