I'm assuming that your LCD TV has VGA, HDMI input.. You might as well change your graphics card, buy a Graphics card with a HDMI or DVI output. if you bought the Graphics card with DVI output then get the cable with HDMI-DVI, or if VGA Card has HDMI output then much better, use HDMI-HDMI cable HDMI Cable uses Both Video and Audio Output unlike HDMI-DVI which is only Video

Cheers