pc to tv rgb

I have an LG 42LT75 with built in hard drive and want to send from the TV to a computer. Anyone any idea how?
The TV has the following connections, HDMI / DVI, HDMI, digital audio output (optical), RS-232C, RGB (PC), Audio (RGB / DVI), Audio / Video, S-Video.
With the "inputs" is not no way you will be nothing other than the digital audio output of this TV. This is the standard, indeed. Televisions are designed for display devices only. Normally, if you need a video output, you have to get cable box or satellite receiver that feeds signal to the TV.
pal nes upscaled into hd to my lcd tv
