There is a product called AVERKEY that will link the computer to the TV. I
have one, but have not yet hooked mine up. Several teachers have one at our
school, it was purchased by the media center. Whatever shows up on your
screen will go onto the TV screen. I am trying to get a PowerPoint
presentation of artworks on that to use for artist identification and other
art history topics. I will be able to call up web sites on whatever topics
we are studying.
Some televisions will need an additional adapter that costs about 40 dollars.
I believe the AVERKEY unit is about $125 but I'm not sure.