Buy an LCD TV from LG Electronics, either the LX1, LX2 or LP1 series (sold in these sizes: 26", 32", 37" and 42"). They are probably the only LCD TV's in the market today that supports 1:1 pixelmapping in 1360x768 and 1366x768 via DVI-D and HDMI, and they support HDCP encryption too which will be important with Windows Vista with build in HDCP protection. 1360x768 is udsed because most graphic card hardware only support resolutions that are  multiples of 8, and 1366 is not a multiple of 8. So instead the LCD leaves 3 pixel rows black in each side so you can still have 1:1 pixelmapping with a 1360x768 resolution which the graphic card hardware supports. 1360x768 is a special supported resolution of the LG LCD TVs, becuse they know that graphic cards from ATI and NVIDIA are not able to output 1366. The the LG TV accepts a 1360x768 signal instead and makes sure three pixel colums in each side are always tunred of in the 1360x768 mode so you can still obtain 1:1 pixelmapping from ATI and NVIDIA graphic cards. You will only miss about 0.4% of the total image by missing three pixel columns in each side, but still obtain 1:1 pixelmapping rather than stretching the 1360:768 signal to 1366x768 which would mean a much worse picture becuse you wouldn't have 1:1 pixelmapping anymore then.

Almost all other LCD TV's in the market today don't support 1:1 pixelmapping in the native resolution. Even if they accept HDMI or DVI-D input in the native resolution of 1366x768 (or 1360x768), they still downscales the signal and upscales it again before it reaches the panel. The lack of 1:1 pixelmapping is why 1280x720 looks better on many 1366x768 LCDs than 1366x768 / 1360x768. Like the example Jason posted above about Sony FWD32LX1 that lacks 1:1 pixelmapping and therefore shows a worse picture in the native resolution of 1366x768 than 1280x720. TVs without 1:1 pixelmapping are not very well suited for PC use, even if Sony states it is specifically desinged for PC use. LCDs well suited for PC use should offer to have no internal scaling in the native resolution. You never see any professional monitors that does any internal scaling like the Sony "professional" LCD TV does. The Sony TV might offer a good picture, but it would have been better with 1:1 pixelmapping so all the scaling could be done at the PC. If you input a PAL or NTSC SD resolution source to the Sony TV from a HTPC, then you need to scale the picture twice. First it is scaled up to 1280x720 at the PC and send to the Sony LCD TV. Then the Sony TV scales it again from 1280x720 to the native res. of 1366x768. The TV also scales the computer graphics. Of course if you have a 1280x720 source, it doesn't matter if the scaling to 1366x768 happens at the PC or the TV. But a HTPC handles many other resolutions than 1280x720 and then you will have two scalings. With a 1:1 pixelmapped TV you would have no scaling at the TV side. So computer graphics wont have any scaling at all on a 1:1 pixelmapped TV as opposed to the Sony for example. This means the text in you browser for example is much sharper on a 1:1 pixelmapped TV/monitor.

With Philips, Sony, Samsung and almost all others LCD TV brands except LG Electronics you can forget about 1:1 pixelmapping via HDMI or DVI-D. Some of them offer 1:1 pixelmapping via VGA, but not via digital interface. I know this is true for Samsung for example. That is why yo get a better picture via VGA on a Samsung than via DVI-D.

It is very important to use either HDMI or DVI-D with HDCP support if you want to be able to play HDCP protected material in the future. Things like HD-DVD, Blu-ray and HDTV will be HDCP protected and you wont be able to display it in HD resolution without HDCP support.

Please bear in mind that because an LCD TV supports inputs in its panles native resulution doesn't nessasarly mean it supports 1:1 pixelmappping. A LCD with a native resolution of 1366x768 might downscale the signal internally to before it upscales it back to the same resolution. Support for inputs in native resolution is useless if it doesn't support 1:1 pixelmpping as well. Many of the so called HD-Ready TV's that accept HD signals also downscales this HD signal and process it before it upscales it to native resolution again and send it to the panel.

In a Danish HIFI/Video forum is a topic called "The ultimate LCD TV for HTPC" with an updated list in the firtst post of LCD TVs that support 1:1 pixelmapping via DVI-D or HDMI with HDCP support. As you can see the only ones found so far is the three top lines from LG Electronics (LX1, LX2 and LP1). Many other brands have been tested, but no other model with 1:1 pixelmapping via HDMI /DVI-D with HDCP has been found. Two outdated Medion 2/" and 30" models that aren't in the market anymore was found to have 1:1 pixelmapping support via DVI-D, but they didn't support HDCP encryption. So far no other brand/model than the ones shown from LG has been found to have 1:1 pixelmapping support via DVI-D or HDMI. Check the first post here to see an updated list:

http://www.hifi4all.dk/forum/forum_posts.asp?TID=27344

The first post will be updated if other models are found, no matter which brand it is. If you find any other LCD TVs with 1:1 pixelmapping via HDMI or DVI-D, please PM me.

The model names in the diferentseries might be slightly different depending on which country you are in.

Here is a Norwegian forum with a similar topic. They also ound out LG supports 1:1 pixelmapping: http://www.minhembio.com/forum/index.php?showtopic=93608&st=360&searchtime

Read more about 1:1 pixelmapping here: http://archive.avsforum.com/avs-vb/showthread.php?s=&threadid=90884

This test pattern can be used to test 1:1 pixelmapping:

Here is another test pattern to test 1:1 pixelmappping:

And a third pattern: