Haven't we been here before?
Take a look at http://en.wikipedia.org/wiki/Acorn_Network_Computer and http://en.wikipedia.org/wiki/Network_computer.
I just don't see why consumers are going to spend this kind of money on a device to browse the Internet on their TV.
Games consoles all provide access to most streaming services. PCs and Laptops can be had for $299 or less and you can surf the web on those AND watch TV on your TV at the same time. Without the family seeing what you're looking at. And a large percentage of TVs being churned out now have some kind of network connectivity built in.
This seems like a solution to a problem that doesn't exist. Or an attempt to fill a gap in the market that is there for a reason.
Good luck with this one ...