Vizio - 32 LCD HDTV (VO32LFHDTV10A) - Service Menu

This button combination may work with other Vizio TVs, but I've only tested it on this particular model.



Info & Specs: Vizio.com

Turn on the TV
Press and hold the "Volume -" and "Input" buttons on the TV
Press the "Menu" button on the remote
Release the "Volume -" and "Input" buttons on the TV