Bit of a longshot but does the tv support DVI? You can get a hdmi to dvi cable. Thats how my old pc used to run however i cant remember if i had to use a surround sound system for the audio, but i cannot remember if that was essential or not. Just look for a long connector on the back of the tv with lots of holes in a line and a sort of plus sign.
Infact look at these images and you may get an idea of what i am trying to say.