If you want to show whatever is on your Laptop on your TV, you need a HDMI to HDMI wire. If you do not have a HDMI input for the TV or the Laptop, you need a VGA to HDMI or a VGA to VGA wire. Make sure your TV has a HDMI, if it does and your Laptop does as well you need to purchase one single HDMI wire. A used one can cost about $5-7 on ebay, $30-70 in stores. If your Laptop has a VGA input and the TV has a HDMI, purchase a VGA-HDMI wire.