Help, I have a wii and new sony computer/pc TV

[littlegecko2]

I really need some help. I have new Sony VGC-LT29U PC/TV. http://www.sonystyle.com/wcsstore/SonyStyleStorefrontAssetStore/pdf/VGC-LT29U_spec.pdf

Here are the specs:

Processor: NVIDIA® GeForce® 8400M GT GPU with
Total Available Graphics Memory of 1535MB
(max.)
Video RAM: 256MB dedicated video memory
Chipset: Mobile Intel® PM965 Express Chipset
TV Tuner: Yes - ATI TV Wonder™ Digital Cable
Tuner (NTSC, ATSC and CableCARD™
Support)

I need help getting help setting the wii up on the computer to see it on that wonderful screen. I can plug the wii into the ATI TV wonder Digital Cable Tuner that came with the computer. It is external, theres not sorce button or video mode that I can find. Its not like your normal new monitor/TV's. I've been told it might not be possible, but I know there is a way. I just have to figure that way out.

Thanks,

For the help.