If you have a VGA out socket on your PC (i think theses are d sub type) and a VGA input socket on your tv you can easily connect using a VGA Monitor cable;



They are around £20, but shop around you can get em cheaper. Make sure you check them carefully as there are different types. PC world and maplin do them. Audio input on TV is usually just a 3.5mm Jack direct from output on PC.

As for the quality on a LCD TV its top notch

Andrew