do a search for Slingbox (which is actually equipment you have to buy so you can watch your home tv) and/or go to
www.slingbox.com
or, check Orb (only if you have a tv card in your home pc which needs to be on 24 hours in order for you to be able to watch)
www.orb.com
lastly, check out HandiTV.. i have it, downfall is not a whole lot of stations.
http://www.handmark.com/index.php?device=374