Lcd Hookup As Tv Help!!!

I would like to use a LCD monitor I have as a TV. I have two computers with Trinitrons hooked up to them and I want to mount this one on the wall between the two so my wife and I can watch TV as we are online.

I know I could use a TV tuner, or a video card to push the signal but I want this to be standalone, is there any devices out there that will do what I need? A module of some kind to take a coax signal and spit it out on the LCD?

Any suggestions are appreciated!

THANKS!

Mark

I think Viewsonic makes something like that. Check their website out.