1 Answer

I think you need more than just a USB to connect your laptop to the TV. 

Instructions
1
Makes sure the television has the proper connections. Some older televisions are not equipped with the connections necessary to connect the laptop to the television. An S-video connection is the most common means of connection. (See resources for S-video cable examples)

2
Check the laptop to make sure there is a video capable of connecting to the television. Not all laptops come equipped with a TV-out video card. Another option is installing Mpeg decoder card if laptop has no connectors. (See resources for M-peg decoder cards). The drawback of the Mpeg card is that it does not play Divx or .mov files.

3
Obtain the correct cable to connect the PC laptop and the television. S-video cables are the most common cable and the easiest to connect. VGA is another cable option. VGA is a regular monitor cable that connects the two. This option is only available for HDTVs.

4
Connect the laptop to the television. Make certain that both the TV and laptop are off before making the connection. When turning the television on make sure that the appropriate video mode is activated. For instance, if an S-video cable is used set the video option on the television to S-video. On the laptop set the video output to the correct source. Please consult the owner's manual, because steps for changing the setting vary for each laptop model.

Read more: http://www.ehow.com/how_2090653_connect-pc-laptop-tv.html#ixzz2XTG6X79n