Are you talking about LightWave the 3D program? Or Lightwave as in "A device that transmits light pulses over optical fibers at extremely high speeds "?
Either case, what does this have to do with the TV? What you you trying to do, connect the PC to the TV? Or is this some other lightwave thing? Need more details here, and what is the everything that you have tried so we're not re-hashing things you already did?