If your laptop has a VGA port, check to see if your TV also has a VGA port or PC in port. If so, connect the two using a vga cable and connect the audio to your HK with a 1/8" to RCA cable. If your TV has no VGA port, you may be able to use a VGA to component cable. Make sure your TV supports the resolutions output by your video card.
But seriously consider buying a streaming player such as Roku, WDTV, or a blu ray player that has Netflix built in. These can be had for under $60.