How about this cable? VGA into laptop and RCA into TV?
I'm not sure, but I don't think so.
And one more thing. I once hooked up my laptop to my analog TV. The results were less than impressive. First, analog TV uses 480i (which is 640x480). Second, for some reason my laptop used only a fraction of that space making the picture even smaller with a large black border, but that could just have been my laptop's problem. Finally, if your laptop has an HDMI port I assume that it also has a Blu-Ray player; you will not be able to watch Blu-Ray movies on your TV (the DRM built into the laptop will prevent it). So are you sure you really want to go through with this?.