We are talking LCD Televisions...
Costco is selling the Sharp Aquos LC-20B4U-S.
Here is the link to the features page:
http://www.sharp-usa.com/products/ModelDetailedSpecs/0,1161,1195-,00.html
480x640 isn't bad, I have compared the Sharp Aquos picture side by side to that of their competitors and for LCD televisions IMO, the Aquos were the better quality.
LCD faults when there is fast moving action and the LCD's can't regenerate fast enough and you get an inherit blurring of the scene. This wasn't too bad on the latest Aquos series.
I was recently at the local Fry's mega electronics store and was looking at some of the new Mac's. In architecture we will always use PC's for CAD, but I was amazed at the ability of the G-series Mac and it's wide monitor screen (24x16) screen to display several video movie image windows similtaneously with very smooth results.
As for the Sharp Aquos, I may make a day trip to the local Costco in Oregon to pickup a couple of the 20"LCD soon.
If you want a nice LCD Computer monitor, The ViewSonic VX700 at Best Buy for $649.00 is a good one for the money.