Walmart offers the Tatung 23" Widescreen HD LCD TV Monitor with Built-in Speakers for $998.

The 23" 16:9 LCD TV is HDTV ready. The LCD TV has a resolution of 1280 x 768 (WXGA), a 400:1 contrast ratio, 16ms response time, 3-D comb-filtering and Motion-adaptive de-interlacing. The LCD screen has a Built-in TV/cable tuner and Picture in Picture function.
The Walmart LCD TV can also be used as a Computer Monitor (1024x768px).
Pretty cool specifications for $998 and I could not find a cheaper 23" LCD TV.

Buy the Tatung 23" Widescreen HD LCD TV Monitor with Built-in Speakers for $998 at Walmart.

About Tatung
Founded in 1918, Tatung is a worldwide leader in the design and manufacturing of a wide variety of digital consumer products, including consumer PCs, LCD TVs, videophones and home appliances. With its overseas branches spreading across 12 countries, Tatung products are in homes everywhere, from the United States to the UK, Japan, Canada and many others.

See also the Walmart Notebook for under $600.