I have a Samsung 7050 HD TV. It is supposed to be able to browse the internet and watch videos. I can browse, but I cannot watch videos on any websites. PBS, HULU, Frontline etc.
To watch videos from the mentioned sites e.g. Hulu you have to use the Smart Hub apps. I'm not sure whether the required once are pre-installed or need to be downloaded.
The Web browser itself is what it is ~ a browser to surf the web, not to watch videos.