I need to connect three televisions to one computer to display what is on the computer's monitor?

I've got three 42" flat panel LCD televisions which need to display presentations from a computer. How can I connect all three televisions to one computer (either physically or wireless) so that I can accomplish this? Is there any hardware that I need? If so, what specifically would I need?

so i assume you want the same thing on all three? well the lucky thing is the LCDs should all have VGA ports so you just need a splitter http://www.newegg.com/Product/Product.aspx?Item=N82E16817404026