you don't want to buy a separate TV for that purpose.
just download a software and watch it through online.
I suggest to try with this one. but feel free to make a search on Google and select most suitable one for you. it's upto you.
FreeZ Online TV v1.40 http://download.cnet.com/FreeZ-Online-TV/3000-13632_4-10915468.html
Prothean , thanks for the reply.
But my actual need is to have a TV that supports USB, this would be wall mounted in a room. Since it is going to be wall mounted , using a PC with internet connection would not be applicable for this situation as i see
usb stick can only play with dvd player which is cheap. Usb on tv do not suport video . Check dvd player with divx and mpeg4 . So you can download movies
Ah! good point. Didn't know about the nbox , seems like a good option
But is it available in sri lanka ? Do i need to purchase it from ebay if i am going to ?