mattmelcher wrote:More than likely it's the 5.1 digital audio output and it requires a special cable and a digital audio input on your receiver. If you dont have that you may be able to use the RCA or headphone outputs and powered computer speakers as others have described
Damn, I didn't think of this Rodney. If your tv is new and only has one output, it is probably digital(optical?). In that case, you can't use powered speakers that don't have a corresponding input, without running it through a digital analog converter. If they even have those, it would likely be nearly as inexpensive to buy the cheapest speakers with a digital input.
Sorry to get your hopes up dude.
Looking at a few Vizio specs on the internet and it looks like they usually have an analog audio output, and an optical digital audio output or only an analog output, so you may be ok.