I looked up your product specs, and it says that you have HDMI port on your HP. If your Sanyo TV also HDMI port, then you can connect them together with a HDMI cable which has the capability of transmiting both video and sound. If your HP doesn't use the TV as a display automatically, usually there's a function key to toggle the external display... something like FN+F5, though you'll get a clue from the icons on your keyboard.
If your TV does not support HDMI, then you might be able to get a converter for whatever kind of input it takes.