Vizio Smartcast Review. Vizio manufactures its televisions in taiwan or china, depending on the size of the televisions. Vizio is a privately owned american electronics company that focuses on developing and manufacturing electronics for entertainment Vizio products are not made by sony; Vizio made a nice looking tv, and the colors look awesome. It constantly freezes, refuses to connect to the internet, shuts off, lags, etc. This tv is by far worse than the cheap off brand tv that i have. Vizio is well known for pricing the