Here's an interesting article from a few years ago.
And some info from their Wiki page.
Vizio currently primarily produces television sets. Vizio became the largest LCD TV seller in North America for the second quarter of 2007, with 606,402 TVs sold, a 76% jump from the previous quarter. Its market share increased from 9.4% to 14.5%. In September 2008, Vizio started selling LCD TVs to Costco in Japan. In February 2009, Vizio announced they would stop production of plasma televisions. At the CES 2009 Vizio introduced a 240 Hz LED-backlit VF551XVT 55" LCD TV.
Vizio has also started making other Audio/Video equipment such as High Definition Surround Sound Systems, LCD computer monitors and HDTV accessories. The company released its first Blu-ray Disc player in August 2009. At the beginning of 2011, it was stated that Vizio will extend it's portfolio of electronics devices to mobile phones, with the name Via Phone, and tablets, named Via Tablet. The new phones and tablets are expected to be shown at 2011 Consumer Electronics Show.
On October 19, 2010, Vizio signed a 4-year contract to sponsor the college football's annual Rose Bowl game in Pasadena, California, beginning with the 2011 Rose Bowl presented by Vizio and ending with the 2014 Vizio BCS National Championship Game.
In the meanwhile, Sony and Samsung are sitting around scratching their heads wondering what the hell just happened to their market share!
From cars/trucks, to electronics, the American resurgence is coming on strong. There's simply no reason to not buy these American products anymore.