If you have a VGA input on the TV, you can use a VGA cable like skife linked to and just use a 3.5mm stereo to RCA stereo cable to connect the headphone output on the laptop to an RCA stereo input on the TV.
In a lot of ways, VGA is easier to get working properly vs. HDMI. VGA is just more accepting of PC resolutions. HDMI sometimes gets pissy if your computer doesn't send a standard TV resolution.
Monoprice is awesome BTW. They are not junk cables by any means. Great TV mounts as well.